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WO2024260304A1 - Système de transfert et procédé de transfert de matériau radioactif - Google Patents

Système de transfert et procédé de transfert de matériau radioactif Download PDF

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Publication number
WO2024260304A1
WO2024260304A1 PCT/CN2024/099476 CN2024099476W WO2024260304A1 WO 2024260304 A1 WO2024260304 A1 WO 2024260304A1 CN 2024099476 W CN2024099476 W CN 2024099476W WO 2024260304 A1 WO2024260304 A1 WO 2024260304A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiation
actuator
shielding device
radiation shielding
transfer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/099476
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English (en)
Chinese (zh)
Inventor
宋晨铭
贡秋平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neuboron Therapy System Ltd
Original Assignee
Neuboron Therapy System Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202410501066.2A external-priority patent/CN119170315A/zh
Application filed by Neuboron Therapy System Ltd filed Critical Neuboron Therapy System Ltd
Publication of WO2024260304A1 publication Critical patent/WO2024260304A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/06—Structural combination with remotely-controlled apparatus, e.g. with manipulators

Definitions

  • the present invention relates to the technical field of radioactive site operations, and in particular to a radiation transfer system and a transfer method.
  • radioactive sites such as neutron therapy, oil exploration, field prospecting, instrument measurement, neutron photography, nuclear facilities, radiation breeding and other medical, industrial, agricultural and scientific research fields, often have radioactive materials, and there will inevitably be a large amount of radiation. Due to the radioactive hazards of radioactive materials in radioactive sites, when replacing, carrying, transferring and storing radioactive materials for transportation or other purposes, if the operators manually replace the radioactive materials at close range without adequate protection or isolation measures, it will cause harm to the health of the operators.
  • An exemplary radioactive site such as a neutron capture therapy system in radiotherapy, in which the neutron generating unit irradiated by a high-energy level accelerated charged particle beam reaches its service life after a certain period of use.
  • the old neutron generating unit In order to stably generate neutrons, the old neutron generating unit needs to be recovered, transferred and stored at a fixed point, such as transferring the old neutron generating unit from a temporary storage device to a safer storage device for fixed-point storage, and centralized monitoring, maintenance and management.
  • the old neutron generating unit is a radiation material with strong radioactivity.
  • the radiation dose rate faced by the operators is very high.
  • Special consideration should be given to external radiation protection and special treatment to reduce the dose received by the workers as much as possible.
  • the present application discloses a radiation transfer system, which includes: a first radiation shielding device, at least for accommodating radiation; a second radiation shielding device, at least for storing radiation; and a transfer device, for transferring radiation in the first radiation shielding device to the second radiation shielding device.
  • the radiation in the first radiation shielding device is transferred to the second radiation shielding device by the transfer device, thereby realizing the transfer and storage of the radiation.
  • the radiation transfer system is applied to a neutron capture therapy system, which includes: an accelerator for generating a charged particle beam; a transmission device for transmitting the charged particle beam generated by the accelerator, the transmission device including at least a first transmission part and a second transmission part, wherein the first transmission part and the second transmission part are detachably connected; a neutron generating part, which is arranged in the first transmission part and can move with the first transmission part, and the neutron generating part is used to react with the charged particle beam to generate a neutron beam; and a beam shaper, which is used to adjust the energy spectrum of the neutron beam; wherein the first radiation shielding device is at least used to accommodate the neutron generating part, and the transfer device is used to transfer the neutron generating part located in the first radiation shielding device to the second radiation shielding device.
  • the transfer device includes a substrate and a moving member, and the moving member can be operably moved relative to the substrate.
  • the moving member By controlling the moving member to move relative to the substrate, the moving member can reach the position of the first radiation shielding device and the position of the second radiation shielding device, thereby realizing the transfer of the radiation object.
  • the transfer device further includes a first actuator; the first actuator is movably disposed on the moving member, and is used to obtain or release the radiation object; at least in the first direction, the first actuator can move relative to the base body with the moving member, and the first actuator can move to the corresponding position of the first radiation shielding device and the corresponding position of the second radiation shielding device with the moving member.
  • the first actuator is driven to move by the movement of the moving member, so that the first actuator can move between the corresponding position of the first radiation shielding device and the corresponding position of the second radiation shielding device, and performs the action of picking up the radiation object when in the first radiation shielding device, and performs the action of releasing the radiation object when moving to the second radiation shielding device, thereby realizing the transfer of the radiation object, wherein the corresponding position refers to the position above, obliquely above, etc.
  • the first actuator includes a first actuator and a first movable member, the first actuator is used to obtain or release the radiation, the first movable member is connected to the movable member, and the first movable member can drive the first actuator to move.
  • the first movable member moves to the first radiation shielding device, the first movable member enables the first actuator to pick up the radiation, and when the first movable member moves to the second radiation shielding device, the first movable member enables the first actuator to release the radiation into the second radiation shielding device.
  • the first movable member can drive the first actuator to move relative to the moving member, so that the position of the first actuator relative to the first radiation shielding device and/or the second radiation shielding device can be adjusted to transfer the radiation from the first radiation shielding device to the second radiation shielding device.
  • the first movable member drives the first actuator to move so that the first actuator approaches or moves away from the first radiation shielding device and the second radiation shielding device, so that the first actuator can acquire or release the radiation.
  • the radiation transfer system further includes a radiation isolation member and a second actuator; the second actuator is movably arranged on the moving member, and is used to obtain or release the radiation isolation member; at least in the first direction, the second actuator can follow the moving member to move to the corresponding position of the radiation isolation member and the corresponding position of the second radiation shielding device. In this way, after the second actuator picks up the radiation isolation member, it moves along the first direction to the second radiation shielding device, and is transferred to the second radiation shielding device to achieve isolation of the radiation member.
  • the second actuator includes a second actuator and a second movable member, the second actuator can obtain or release the radiation isolation member, the second movable member is arranged on the movable member, and the second movable member can drive the second actuator to move.
  • the second movable member can drive the second actuator to move, and after the second actuator picks up the radiation isolation member, the radiation isolation member can be transferred to the second radiation shielding device to achieve isolation of the radiation object.
  • the second movable member can drive the second actuator to move relative to the movable member, so that the position of the second actuator relative to the second radiation shielding device and/or the radiation isolation member can be adjusted to transfer the radiation isolation member to the second radiation shielding device.
  • the second movable member drives the second actuator to move in the second direction, so that the second actuator can approach or move away from the radiation isolation member and the second radiation shielding device, thereby transferring the radiation isolation member to the second radiation shielding device.
  • the radiation isolation element includes a supporting structure, and the supporting structure is used to protect the surface of the radiation object to form a protective space, which is beneficial to protect and position the protruding structure on the surface of the radiation object.
  • the thickness of the radiation isolation member is larger near the radiation object and smaller away from the radiation object.
  • the radiation isolation element includes multiple gradient thicknesses.
  • the first radiation shielding device includes a first accommodating cavity capable of accommodating a radiation object/neutron generating unit
  • the second radiation shielding device includes a second accommodating cavity capable of accommodating a radiation object/neutron generating unit
  • the radiation isolation member has a larger structural thickness near the opening of the first accommodating cavity or the opening of the second accommodating cavity, and a smaller structural thickness away from the opening of the first accommodating cavity or the opening of the second accommodating cavity.
  • the second radiation shielding device includes a second openable and closable member
  • the radiation object transfer system also includes a third actuator, and the third actuator is used to open or close the second openable and closable member. This arrangement enables the third actuator to follow the moving member to move to the corresponding position of the second radiation shielding device and then perform the action of opening or closing the second openable and closable member.
  • the third actuator includes a third actuator and a third movable member, the third actuator is used to open or close the second openable and closable member, the third movable member is movably arranged on the movable member, and at least in the first direction, the third movable member can drive the third actuator to move and follow the movable member to move to the corresponding position of the second radiation shielding device.
  • the third movable member moves with the movable member, it can drive the third actuator to move, so as to reach the second radiation shielding device and open or close the second openable and closable member.
  • the third movable member can drive the third actuator to move relative to the movable member, so that the distance between the third actuator and the second radiation shielding device can be adjusted to open or close the second openable and closable member.
  • the third movable member drives the third actuator to move in the second direction, the third actuator can be moved closer to or away from the second radiation shielding device, and when it is closer, it is also closer to the second openable and closable member, so that the second openable and closable member can be opened or closed.
  • the first radiation shielding device, the second radiation shielding device and the radiation isolation member are arranged in sequence, and the first actuator, the third actuator and the second actuator are arranged in sequence, so that when the movable member is located at the third position of the base, the first actuator corresponds to the position of the first radiation shielding device, the third actuator corresponds to the position of the second radiation shielding device, and the second actuator corresponds to the position of the radiation isolation member.
  • the first actuator corresponds to the first radiation shielding device
  • the third actuator corresponds to the second radiation shielding device
  • the second actuator corresponds to the radiation isolation member
  • the first radiation shielding device is provided with a first openable and closable part, and when the first openable and closable part is closed, a closed shielding space is formed; when the first openable and closable part is opened, the radiation object can pass through the first openable and closable part.
  • the first radiation shielding device is closed, thereby isolating the radiation object from external radiation.
  • the first openable and closable part can be opened.
  • the radiation transfer system further comprises an openable and closable member control device, which can remotely control the opening and closing of the first openable and closable member through a wired or wireless connection.
  • an openable and closable member control device which can remotely control the opening and closing of the first openable and closable member through a wired or wireless connection.
  • At least one of the first radiation shielding device and the second radiation shielding device is provided with a movable portion, and the movable portion is configured to enable at least one of the first radiation shielding device and the second radiation shielding device to move between an initial position and a terminal position.
  • the movable portion is provided, at least one of the first radiation shielding device and the second radiation shielding device can move between an initial position and a terminal position, thereby adjusting the distance between the two, so as to facilitate the transfer device to transfer the radiation and the first transfer portion.
  • the radiation transfer system further includes a positioning system, and the positioning system is used to locate the positions of the first radiation shielding device and the second radiation shielding device relative to the transfer device.
  • the transfer device After determining the first radiation shielding device After the position of the first radiation shielding device and the second radiation shielding device is determined, it is convenient for the transfer device to execute the transfer of the first transmission part.
  • the execution program of the transfer device can be preset by the position. After the first radiation shielding device and the second radiation shielding device are moved to the preset position, the program of the transfer device can be executed to realize the transfer of the first transmission part.
  • At least one of the first radiation shielding device and the second radiation shielding device is provided with a buffer, and after the radiation object contacts the buffer, the buffer produces elastic deformation and exerts an opposite force in the direction of movement of the radiation object. In this way, the radiation object is subjected to a buffer force when entering the first radiation shielding device or the second radiation shielding device, thereby avoiding direct collision damage.
  • the first radiation shielding device and the second radiation shielding device are made of radiation shielding materials.
  • the first radiation shielding device and the second radiation shielding device can effectively prevent radiation leakage, avoid radiation contamination, and improve safety.
  • the third guide portion is disposed in the first radiation shielding device box
  • the fourth guide portion is disposed in the second radiation shielding device box
  • the transfer device moves the radiation object out of the first radiation shielding device through the third guide portion, and then moves the radiation object into the second radiation shielding device through the fourth guide portion.
  • the third guide portion in the first radiation shielding device and the fourth guide portion in the second radiation shielding device can reliably fix the radiation object and improve the safety of the transfer of the radiation object.
  • the present application also provides a radiation transfer method, which is applied to a radiation transfer system, wherein the radiation transfer system includes a first radiation shielding device, a second radiation shielding device, and a transfer device.
  • the radiation transfer method includes: operably transferring the radiation from the first radiation shielding device to the second radiation shielding device through the transfer device. Transferring the radiation to the second radiation shielding device through the transfer device facilitates the storage of the radiation.
  • the radiation transfer system further includes a positioning system
  • the radiation transfer method further includes: positioning the first radiation shielding device and/or the second radiation shielding device relative to the transfer device by the positioning system. After determining the positions of the first radiation shielding device and the second radiation shielding device, it is convenient for the transfer device to perform the transfer of the first transmission part.
  • the execution program of the transfer device can be preset by position, and after the first radiation shielding device and the second radiation shielding device are moved to the preset position, the program of the transfer device can be executed to realize the transfer of the first transmission part.
  • the transfer device includes a substrate and a moving part
  • the radiation transfer method includes: on the substrate, controlling the moving part to move from the corresponding position of the first radiation shielding device to the corresponding position of the second radiation shielding device.
  • the transfer device includes a first actuator, which is movably arranged on a moving member; the first actuator can move relative to the base with the moving member; the radiation transfer method includes: controlling the moving member to drive the first actuator to move relative to the base, so that it moves to the corresponding position of the first radiation shielding device, and controlling the first actuator to obtain the radiation located in the first radiation shielding device; controlling the moving member to drive the first actuator to move relative to the base, so that it drives the radiation to move to the corresponding position of the second radiation shielding device, and controlling the first actuator to release the radiation to the second radiation shielding device.
  • the first actuator is driven to move by the movement of the moving member, so that the first actuator can move between the corresponding position of the first radiation shielding device and the corresponding position of the second radiation shielding device, and the action of picking up the radiation is performed when it is in the first radiation shielding device, and the action of releasing the radiation is performed when it moves to the second radiation shielding device, so as to realize the transfer of the radiation, wherein the corresponding position refers to the position above, obliquely above, etc.
  • the radiation transfer system further includes a radiation isolation member and a second actuator, wherein the second actuator
  • the radiation transfer system further includes a third actuator, which is movably arranged on the moving part; the second radiation shielding device has a second openable and closable part; the radiation transfer method further includes: controlling the moving part to drive the third actuator to move relative to the base body, so that it moves to the corresponding position of the second radiation shielding device, and closing the second openable and closable part by the third actuator. After closing the second openable and closable part, the radiation object is further sealed to shield the radiation object from the outside.
  • the first radiation shielding device is provided with a first openable and closable part; the first radiation shielding device, the second radiation shielding device and the radiation isolation part are arranged in sequence, and the first actuator, the third actuator and the second actuator are arranged in sequence.
  • the radiation object transfer method includes: opening the first openable and closable part of the first radiation shielding device; controlling the movable part to move to the third position of the base body so that the first actuator corresponds to the position of the first radiation shielding device, the third actuator corresponds to the position of the second radiation shielding device, and the second actuator corresponds to the position of the radiation isolation part; controlling the first actuator to obtain the radiation object located in the first radiation shielding device; controlling the third actuator to open the second openable and closable part for shielding on the second radiation shielding device; controlling the second actuator to obtain the radiation isolation part; controlling the movable part to move to the fourth position of the base body so that the first actuator corresponds to the position of the second radiation shielding device; controlling the first actuator to release the radiation object to the second radiation shielding device; controlling the movable part to move to the fifth position of the base body so that the second actuator corresponds to the position of the second radiation shielding device; controlling the second actuator to release the radiation isolation part to the second radiation shielding device; controlling the mov
  • the movable part is arranged at a plurality of positions relative to the base body.
  • the positions of the first, second and third actuators can be adjusted by controlling the movement of the movable part between the plurality of positions, so that the radiation isolation part can be placed on the radiation object while transferring the radiation object and covering the second openable and closable part, without the need to arrange three independent control units for the actuators.
  • the present application also discloses a neutron capture therapy system including a transfer device.
  • the neutron capture therapy system includes: an accelerator for generating a charged particle beam; a transmission device for transmitting the charged particle beam generated by the accelerator, the transmission device at least including a first transmission part and a second transmission part, wherein the first transmission part and the second transmission part are detachably connected; a neutron generator, which is arranged in the first transmission part and can move with the first transmission part, and the neutron generator is used to react with the charged particle beam to generate a neutron beam; a beam shaper, which is used to adjust the energy spectrum of the neutron beam; a first radiation shielding device, which is used to accommodate the first transmission part and the neutron generator; a second radiation shielding device, which is used to store the first transmission part and the neutron generator; and a transfer device, which is used to transfer the first transmission part and the neutron generator located in the first radiation shielding device to the second radiation shielding device.
  • the first transmission unit and the neutron generating unit enter the first radiation shielding device to achieve storage for the first preset time.
  • the first transmission unit and the neutron generating unit are transferred to the second radiation shielding device via the transfer device to achieve transfer of the neutron generating unit and storage for the second preset time.
  • the second preset time is significantly longer than the first preset time, and the second preset time is particularly suitable for long-term storage of the neutron generating unit.
  • the second radiation shielding device is more suitable for long-term storage of the neutron generating unit than the first radiation shielding device until the neutron generating unit is
  • the radioactive materials in the health department meet the safety requirements, thus effectively achieving radiation safety protection.
  • the neutron capture therapy system further comprises a guiding device, which can guide the first transmission part and the neutron generating part to move from the first position to the second position, wherein when the first transmission part is located at the first position of the neutron capture therapy system, the neutron generating part is accommodated in the beam shaping body and can react with the charged particle beam to generate neutrons; when the first transmission part is located at the second position of the neutron capture therapy system, the neutron generating part and the beam shaping body are separated from each other.
  • a guiding device which can guide the first transmission part and the neutron generating part to move from the first position to the second position, wherein when the first transmission part is located at the first position of the neutron capture therapy system, the neutron generating part is accommodated in the beam shaping body and can react with the charged particle beam to generate neutrons; when the first transmission part is located at the second position of the neutron capture therapy system, the neutron generating part and the beam shaping body are separated from each other.
  • the neutron generating part When the first transmission part is located at the first position, the neutron generating part is located in the beam shaping body and can react with the charged particle beam to generate the neutron beam; when the neutron generating part needs to be replaced, the neutron generating part and the first transmission part are guided to the second position by the guiding device so as to enter the first radiation shielding device, and then the neutron generating part and the first transmission part are transferred to the second radiation shielding device by the transferring device, and the neutron generating part that needs to be replaced is finally accommodated in the second radiation shielding device through the cooperation of the first transmission part, the guiding device and the transferring device.
  • the guiding device includes a first guiding part, a second guiding part and a third guiding part, wherein the guiding directions of the first guiding part and the second guiding part are different, the second guiding part and the third guiding part are connected, and the third guiding part is arranged in the first radiation shielding device, so that the first transmission part and the neutron generating part can be guided into the first radiation shielding device.
  • the neutron generating part and the first transmission part are guided to move by the first guiding part, the second guiding part and the third guiding part in sequence, wherein when the guiding directions of the first guiding part and the second guiding part are different, the moving path of the neutron generating part can be changed, and when the second guiding part is connected to the third guiding part arranged in the first radiation shielding device, the neutron generating part and the first transmission part can be guided into the first radiation shielding device together.
  • FIG. 1 is a front view of a radiant/neutron generator transfer system according to one embodiment.
  • FIG. 2 is a schematic diagram of the structure of a neutron capture therapy system in one embodiment.
  • FIG. 3 is a state diagram of a shielding facility in an embodiment when it is opened.
  • FIG. 4 shows a state in which a first transmission part with a neutron generating part at the end is replaced in one embodiment.
  • FIG. 5 is a schematic diagram of a connection structure between a first guide portion and a second guide portion in one embodiment.
  • FIG. 6 is a schematic diagram of the structure of a driving mechanism in one embodiment.
  • FIG. 7 is a schematic diagram of an openable and closable member control device controlling an openable and closable member in an embodiment.
  • FIG. 8 is a schematic diagram of a movable part control device controlling a movable part in one embodiment.
  • FIG. 9 is a side view of a radiant/neutron generator transfer system in accordance with one embodiment.
  • FIG. 10 is a top view of a radiant/neutron generator transfer system in one embodiment.
  • FIG. 11 is a schematic diagram of a first actuator of a first actuator clamping a radiation/neutron generating unit or a radiation isolation unit in one embodiment.
  • FIG. 12 is a schematic diagram of the structure of a second radiation shielding device and a third actuator in one embodiment.
  • FIG. 13 a is a schematic diagram of aligning a radiation isolation member with a positioning structure on a mobile carrier in one embodiment.
  • FIG. 13 b is a schematic diagram of placing a radiation isolation element on a mobile carrier via a positioning structure in one embodiment.
  • FIG. 14 a is a schematic diagram of the internal structure of a radiation isolation element in one embodiment.
  • FIG. 14 b is a schematic diagram of aligning a radiation isolation member with a radiation source/neutron generator in one embodiment.
  • FIG. 14c is a schematic diagram of placing a radiation isolation element in a radiation source/neutron generator in one embodiment.
  • FIG. 15 is a schematic flow chart of a method for transferring a radiation/neutron generating unit in one embodiment.
  • FIG. 16 is a schematic flow chart of a method for transferring a radiation material/neutron generator according to another embodiment.
  • FIG. 17 is a structural block diagram of a master control device in one embodiment.
  • FIG. 18 is a schematic diagram showing the position of a moving member when it is at a third position relative to a base body in one embodiment.
  • FIG. 19 is a schematic diagram showing the position of a moving member when it is at a fourth position relative to a base body in one embodiment.
  • FIG. 20 is a schematic diagram showing the position of the moving member when it is at the fifth position relative to the base in one embodiment.
  • 600 first radiation shielding device; 700, second radiation shielding device; 800, transfer device; 100, accelerator; 200, Transmission device; 210, first transmission part; 220, second transmission part; 230/240, support device; 300, radiation/neutron generating part; 310, cooling device; 320, detection device; 400, beam shaping body; 500, guiding device; L1, first position; L2, second position; 510, first guiding part; 520, second guiding part; 530, third guiding part; 531, fourth guiding part; 540, connecting part; 550, driving mechanism; 551, power structure; 552, driving frame; 610, closable part; 610', first closable part; 6 11. Opening mechanism; 612. First monomer; 613.
  • Second radiation shielding Device handle 810, support assembly; 811, pick-up assembly; 812, support frame; 813, retractable mechanism; 820, moving part; 821, guide rail; 830, base; 831, longitudinal rod; 832, cross rod; 833, baffle; 834, oblique rod; 840, first actuator; 841, first movable part; 842, first actuator; 842a, separation and combination part; 842b, support member; 842c, positioning member; 843, first drag chain; 850, second actuator; 851, second movable part; 852, second actuator; 853, second drag chain; 860, The third actuator; 861, the third movable part; 862, the third actuator; 863, the third drag chain; 864, the third power part; 870, the display device; 900, the shielding facility; 901, the opening; 902/903, the shielding door; 1500, the master control device; 1502, the cover opening module; 1504, the moving part control module; 1506, the first execution module; 1508, the
  • first and second are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first” and “second” may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of “plurality” is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • installed can be a fixed connection, a detachable connection, or an integral connection
  • it can be a mechanical connection or an electrical connection
  • it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
  • a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.
  • a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • a first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
  • the radiation transfer system includes a transfer device 800, and also includes at least a first radiation shielding device 600 and a second radiation shielding device 700.
  • the radiation (not shown) is transferred at least between the first and second radiation shielding devices by operating the transfer device 800.
  • the transfer device 800 may further include a base 830 and a moving part 820 (described below).
  • the base 830 provides a stable operating frame and structure for the transfer device, limits the scope of safe operation, and further provides positioning, guidance and display structures to ensure stability, accuracy and reliability during the transfer of radiation; the moving part 820 can be operably moved relative to the base 830.
  • the radiation transfer system in the present application has a stable structure and occupies a small area, which is conducive to the safe transfer of radiation personnel with low risk of exposure in compact buildings.
  • the radiation material is stored in the first radiation shielding device 600 for a first preset time period; after being transferred from the first radiation shielding device 600 to the second radiation shielding device 700 by the transfer device 800, it is stored in the second radiation shielding device 700 for a second preset time period, and the second preset time is significantly longer than the first preset time.
  • the radiation transfer system comprises at least a first radiation shielding device 600, a second radiation shielding device 700 and a transfer device 800.
  • the first radiation shielding device 600 is used to contain radiation
  • the second radiation shielding device 700 is used to store radiation
  • the transfer device 800 is used to transfer the radiation/neutron generating unit in the first radiation shielding device 600 to the second radiation shielding device 700.
  • the first radiation shielding device 600 and/or the second radiation shielding device 700 are made of a radiation shielding material, wherein more than 90% (by weight) of the radiation shielding material is composed of C, H, O, N, Si, Al, Mg, Li, B, Mn, Cu, Zn, At least one of S, Ca, and Ti may be used, and may further be an aluminum-magnesium alloy, or may be a carbon fiber composite material, a glass fiber composite material, or a combination thereof.
  • the radiation object When the radiation object is contained in the first radiation shielding device 600 or the second radiation shielding device 700, it can play a shielding role and isolate the radiation of the radiation object to the external environment.
  • the material of the outside of the first radiation shielding device 600 and the second radiation shielding device 700 is selected as a material that prevents activation, such as aluminum, etc.; the material of the inside is selected as a material with shielding performance, such as lead, etc.
  • the first shielding device 600 can be provided with different materials in different parts of the box according to the position of the radiation object contained.
  • the radiation transfer system is applied to a radiotherapy system.
  • the application of radiotherapy as an effective means of treating cancer has gradually increased in recent years, especially the research and development of neutron capture therapy that can effectively reduce the radiation damage to normal tissues around tumors.
  • boron neutron capture therapy is the most common.
  • the neutrons supplied for boron neutron capture therapy can be supplied by nuclear reactors or accelerators.
  • One embodiment of the present application takes a neutron capture therapy system as an example, such as an accelerator boron neutron capture therapy system, and its basic components generally include an accelerator for accelerating charged particles (such as protons, deuterons, etc.), a radioactive consumable neutron generation unit and a heat removal system, and a beam shaper.
  • the accelerated charged particles interact with the metal neutron generation unit to generate neutrons, and the appropriate nuclear reaction is selected based on the required neutron yield and energy, the energy and current size of the accelerated charged particles that can be provided, and the physical and chemical properties of the metal neutron generation unit.
  • the nuclear reactions that are often discussed are 7 Li(p,n) 7 Be and 9 Be(p,n) 9 B. Both reactions are endothermic reactions, and the energy thresholds of the two nuclear reactions are 1.881 MeV and 2.055 MeV, respectively.
  • the ideal neutron source for BNCT is epithermal neutrons at the keV energy level, theoretically, if protons with energy just slightly above the threshold are used to bombard the metal lithium neutron production unit, relatively low-energy neutrons can be produced, which can be used clinically without much slowing down.
  • the cross-sections of the two neutron production units of lithium metal (Li) and beryllium metal (Be) with protons of the threshold energy are not high. In order to produce a sufficiently large neutron flux, protons with higher energy are usually selected to initiate nuclear reactions.
  • the requirements for the heat removal system vary depending on the selected nuclear reaction.
  • 7 Li (p, n) 7 Be has higher requirements for the heat removal system than 9 Be (p, n) 9 B due to the difference in melting point and thermal conductivity of the metal neutron generator (lithium metal).
  • the nuclear reaction of 7 Li (p, n) 7 Be is used in the embodiment of the present application. It can be seen that the temperature of the neutron generator irradiated by the high-energy level accelerated charged particle beam will inevitably rise significantly, thereby affecting the service life of the neutron generator.
  • the neutron generator after use is a radiation object and will contain a large amount of radiation. Therefore, when replacing the neutron generator at a close distance, if there are no adequate protection or isolation measures, consider applying the radiation transfer system to the above-mentioned neutron capture therapy system to reduce radiation safety hazards.
  • FIG. 2 shows a schematic diagram of the structure of a neutron capture therapy system in an embodiment of the present invention, and a radiation transfer system can be applied to the neutron capture therapy system.
  • a neutron capture therapy system provided in an embodiment of the present invention includes an accelerator 100, a transmission device 200, a neutron generator (radiant) 300, and a beam shaper 400.
  • the neutron generator 300 in the neutron capture therapy system is the radiation, which is the object transferred by the transfer device 800.
  • the neutron generator 300 When the neutron generator 300 needs to be replaced, the neutron generator 300 is guided into the first radiation shielding device 600, and the transfer device 800 transfers the neutron generator 300 from the first radiation shielding device 600 to the second radiation shielding device 700.
  • the first radiation shielding device 600, the second radiation shielding device 700 and the transfer device 800 can be in the same space with the accelerator 100, the transmission device 200, the neutron generating unit 300 and the beam shaping body 400, such as in the same room; the first radiation shielding device 600, the second radiation shielding device 700 and the transfer device 800 can also be in another space, such as in two rooms respectively.
  • the transfer device 800 includes a support assembly 810 (equivalent to the first actuator 840 hereinafter) and a support frame 812 (equivalent to the base 830).
  • the support frame 812 is used to support the support assembly 810.
  • the support assembly 810 includes a pickup assembly 811 and a retractable mechanism 813 (equivalent to the first movable member 841 hereinafter).
  • the pickup assembly 811 is used to pick up the radiation/neutron generating unit 300, which is equivalent to the first actuator 842, and/or the second actuator 852 and/or the third actuator 862 hereinafter.
  • the support assembly 810 can move relative to the support frame 812 (equivalent to the first actuator 840, the second actuator 852 or the third actuator 862 moving relative to the base 830 through the movable member 820 hereinafter).
  • the accelerator 100 is used to generate and accelerate the charged particle beam P
  • the transmission device 200 is used to transmit the charged particle beam P to the neutron generating unit 300, so that the neutron generating unit 300 can react with the charged particle beam P to generate a neutron beam N for emission
  • the beam shaping body 400 is arranged on the path of the neutron beam N to adjust the beam quality of the neutron beam N.
  • the first radiation shielding device 600 is used to accommodate the neutron generating unit 300
  • the second radiation shielding device is used to store the neutron generating unit 300
  • the transfer device 800 is used to transfer the neutron generating unit 300 from the first radiation shielding device 600 to the second radiation shielding device 700.
  • the radiation shielding capability of the second radiation shielding device 700 is stronger than that of the first radiation shielding device 600.
  • the structure of the second radiation shielding device 700 can be designed to be more streamlined than that of the first radiation shielding device 600. Therefore, the size and volume of the second radiation shielding device 700 can be designed to be relatively small. It is easy to understand that the first radiation shielding device 600 is only suitable for short-term (first time) temporary storage, while the second radiation shielding device is suitable for long-term (second time) storage, thereby meeting the needs of long-term centralized storage of multiple quantities.
  • the neutron capture therapy system can be divided into at least a first space R1 and a second space R2.
  • the accelerator 100, part of the transmission device 200, supporting equipment for supporting the transmission device and related detection equipment are arranged in the first space R1.
  • the second space R2 is usually the core reaction space of the whole system, with a relatively large amount of radiation.
  • Part of the transmission device 200, the neutron generating unit 300 and the beam shaping body 400 are arranged in the second space R2.
  • the second space R2 can be physically separated from the first space R1 by the shielding facility 900 to shield harmful rays as much as possible. Therefore, the radiation amount of the first space R1 and other spaces connected to the first space R1 can be relatively controlled within a relatively safe range.
  • the transmission device 200 runs through the first space R1 and the second space R2, and the shielding facility 900 includes at least one opening 901, which is used to allow the transmission device 200 to pass through when the shielding facility 900 is closed.
  • the accelerator 100 is used to accelerate the charged particles P to an energy sufficient to overcome the nuclear force of the target atoms.
  • the transmission direction of the charged particle beam P is consistent with the arrangement direction of the transmission device 200, so that the charged particle beam P undergoes a 7 Li(p,n) 7 Be nuclear reaction with the neutron generator 300 to generate neutrons, forming a neutron beam N for emission.
  • the transmission device 200 at least includes a first transmission part 210 and a second transmission part 220 detachably connected to the first transmission part 210, wherein preferably, the first transmission part 210 is located in the second space R2.
  • the first transmission part 210 and the second transmission part 220 may be hollow tubes, and their cross-sectional shapes include but are not limited to circular, elliptical, diamond, square, irregular, etc.
  • the shape of at least one opening 901 of the shielding facility 900 may match the shape of the transmission device 200 passing through the opening, including but not limited to circular, elliptical, diamond, square, irregular, etc.
  • the first transmission part 210 and the second transmission part 220 of the transmission device may preferably be kept in a vacuum state.
  • the neutron generator 300 is used to generate a neutron beam N, and can be a target material, such as a target material containing Li, which reacts with the charged particle beam P to generate neutrons by 7 Li(p,n) 7 Be nuclear reaction.
  • the neutron generator 300 is fixedly connected to the first transmission part 210.
  • the neutron generating unit 300 is movable connected or limited by the first transmission unit 210 so that the neutron generating unit 300 can move along with the first transmission unit 210.
  • One end of the first transmission unit 210 provided with the neutron generating unit 300 is received in the beam shaping body 400.
  • the beam shaping body 400 is usually large in size and not suitable for movement. It can be embedded and fixed inside the wall, including a retarder, a thermal neutron absorber, a radiation shield, etc. (not shown in the drawings).
  • the retarder is usually made of aluminum fluoride and one or more mixed materials of lithium fluoride, aluminum, lead fluoride, aluminum oxide, calcium fluoride or magnesium fluoride. It slows down the neutrons generated by the neutron generating unit 300 to the epithermal neutron energy zone, and the deviated neutrons are guided back to the retarder by the reflector to increase the intensity of the epithermal neutron beam.
  • the thermal neutron absorber absorbs the thermal neutrons to avoid unnecessary damage to the shallow normal tissues due to excessive dose during treatment; the radiation shield is used to shield the leaked neutrons and photons to reduce the normal tissue dose in the non-irradiated area.
  • the neutron capture therapy system further includes a third space R3 as an irradiation room, and the qualified neutron beam N can be emitted from the beam outlet and enter the irradiation room for use.
  • the first radiation shielding device 600 and the second radiation shielding device 700 can both be boxes with cavities, and their shapes can be square, spherical or other special shapes.
  • the first radiation shielding device 600 is used to accommodate the first transmission part 210 and the neutron generating part 300, and can play a role of temporary storage.
  • the second radiation shielding device 700 is used to store the first transmission part 210 and the neutron generating part 300, or only store the neutron generating part 300, and can play a role of long-term storage.
  • the first radiation shielding device 600 and the second radiation shielding device 700 are made of radiation shielding materials, including but not limited to radiation shielding made of lead (Pb), etc.
  • the transfer device 800 is used to transfer the first transmission part 210 and the neutron generating part 300 in the first radiation shielding device 600 to the second radiation shielding device 700.
  • the first radiation shielding device 600, the second radiation shielding device 700 and the transfer device 800 are in the same space with the accelerator 100, the transmission device 200, the neutron generating part 300 and the beam shaping body 400, the first transmission part 210 brings the neutron generating part 300 into the first radiation shielding device 600, and the transfer device 800 directly transfers the neutron generating part 300 in the first radiation shielding device 600 to the second radiation shielding device 700.
  • the transfer device 800 may also be in another space.
  • the second radiation shielding device 700 and the transfer device 800 are in the same space, which is more suitable for long-term centralized storage and recovery of the neutron generating unit.
  • the first transmission unit 210 brings the neutron generating unit 300 into the first radiation shielding device 600
  • the first radiation shielding device 600 is moved to enter the independent space where the second radiation shielding device 700 and the transfer device 800 are located, and then the transfer device 800 realizes the transfer of the neutron generating unit 300 from the first radiation shielding device 600 to the second radiation shielding device 700.
  • the neutron capture therapy system also includes a guiding device 500.
  • the guiding device 500 is used to guide the neutron generating unit 300 into the first radiation shielding device 600
  • the transfer device 800 is used to transfer the neutron generating unit 300 from the first radiation shielding device 600 to the second radiation shielding device 700.
  • the guiding device 500 is used to guide the first transmission part 210 to move so as to drive the neutron generating part 300 to move together.
  • the guiding device 500 includes at least two positions, a first position L1 and a second position L2.
  • the first position L1 may be a position when the first transmission part 210 is close to the beam shaping body 400.
  • the neutron generating part 300 is accommodated in the beam shaping body 400 and can react with the charged particle beam P to generate the neutron beam N.
  • the second position L2 may be a position when the first transmission part 210 is away from the beam shaping body 400.
  • the neutron generating part 300 and the beam shaping body 400 are separated from each other.
  • the second position L2 may also refer to a position in the first radiation shielding device 600.
  • the neutron capture therapy system may further include a supporting device 230 and/or 240 for stably supporting the transmission device 200 along the direction in which the transmission device 200 is arranged.
  • the supporting device 230 may be arranged at the lower part of the second transmission part 220, and the supporting device 240 may be arranged at the lower part of the first transmission part 210.
  • the supporting device 240 may also be arranged at different positions such as above or to the side of the first transmission part 210 for support.
  • FIG. 4 shows a state in which the first transmission part 210 with the neutron generating part 300 at the end is replaced in some embodiments.
  • the shielding facility 900 is opened, and the first space R1 is connected with the second space R2.
  • the first transmission part 210 and the second transmission part 220 are separated, and the overall length of the transmission device 200 is changed by removing the second transmission part 220, so that a clearance space is reserved for the first transmission part 210 with the neutron generating part 300 at the end to be moved out along the guide device 500.
  • the second transmission part 220 includes two sections that can be separated again, or is designed as a structure such as a bellows or a telescopic tube (not shown) to reserve a replacement operation space.
  • the guide device 500 separates the first transmission part 210 with the neutron generating part 300 at the end from the beam shaping body 400 and guides it into the first radiation shielding device 600.
  • the guide device 500 includes a first guide portion 510, a second guide portion 520 connected to the first guide portion 510, and a third guide portion 530 connected to the second guide portion 520.
  • the first guide portion 510, the second guide portion 520, and the third guide portion 530 may all be bar-shaped tracks or bar-shaped grooves.
  • the guide device 500 may be provided with a driving mechanism 550 (described below) for driving the neutron generating portion 300 and the first transmission portion 210.
  • the first guide portion 510 is substantially along the extension direction of the transmission device 200, and the extension direction of the transmission device 200 is substantially opposite to or the same as the moving direction of the charged particle beam P.
  • FIG. 5 shows a schematic diagram of the connection between the first guide part 510 and the second guide part 520 in some embodiments, wherein the connecting part 540 may be a connecting rod, a lock buckle, a concave-convex buckle or the like, which can firmly clamp the first guide part 510 and the second guide part 520, so as to realize the smooth movement of the first transmission part 210 from the first guide part 510 to the second guide part 520.
  • the connecting part 540 may be a connecting rod, a lock buckle, a concave-convex buckle or the like, which can firmly clamp the first guide part 510 and the second guide part 520, so as to realize the smooth movement of the first transmission part 210 from the first guide part 510 to the second guide part 520.
  • the projection of the line connecting the first end and the second end of the second guide part 520 forms a first angle with the first guide part 510, such as 10° to 150°, preferably 30° to 90°; preferably, in the plane perpendicular to the ground where the first guide part 510 is located, the projection of the line connecting the first end and the second end of the second guide part 520 forms a second angle with the first guide part 510.
  • More than 90% (by weight) of the material of the larger part of the guide device 500 that is irradiated is composed of at least one of C, H, O, N, Si, Al, Mg, Li, B, Mn, Cu, Zn, S, Ca, and Ti, and may further be an aluminum-magnesium alloy, or a carbon fiber composite material, a glass fiber composite material or a combination thereof.
  • the guiding directions of the first guiding part 510 and the second guiding part 510 in the guiding device 500 are different, that is, the guiding device 500 has at least two guiding directions.
  • This arrangement is advantageous for use in compact buildings, so that the neutron generating part 300 and the first transmission part 210 can be turned when guiding, thereby avoiding the limitation of the guiding distance by the compact building.
  • the third guiding part 530 is arranged in the first radiation shielding device 600, so that the guiding device 500 can guide the neutron generating part 300 and the first transmission part 210 into the first radiation shielding device 600. Please refer to FIG. 4 for the guiding process.
  • the first transmission part 210 passes through the opening 901 formed by the opening of the shielding door 902 and the shielding door 903 on the first guiding part 510 along the extension direction of the transmission device 200, thereby moving to the second guiding part 520, and under the action of gravity or orbital force. Then, the first radiation shielding device 600 is approached and then moved along the direction of the third guide portion 530 provided in the first radiation shielding device 600, thereby entering and being positioned in the first radiation shielding device 600.
  • a protective gasket (not shown) for preventing activation may be provided at the bottom of the first radiation shielding device 600 to carry the radiation object/neutron generating unit.
  • the first transmission part 210 and the neutron generating part 300 preferentially enter the radiation shielding device 600 at a side opposite to the neutron generating part 300 containing radioactive consumables, that is, when the recovery operation is finally completed, the neutron generating part 300 containing radioactive consumables is closer to the receiving opening of the first radiation shielding device 600.
  • the design of this recovery direction focuses on improving the recycling rate of the neutron generating unit 300 containing radioactive consumables. Since the neutron generating unit 300 located in the beam shaping body 400 is made of relatively active lithium metal (Li) and/or beryllium metal (Be), the thickness of the coating itself is only about 100 microns, and it is relatively easy to be damaged after being hit.
  • the recovery direction in which the neutron generating unit 300 finally enters the receiving opening and stays at the far end of the buffer device is safer than other recovery directions, and it is not easy to damage the neutron generating unit, which greatly improves the reuse rate of the neutron generating unit 300 containing radioactive consumables and avoids unnecessary radiation leakage after a collision.
  • the movement direction of the neutron generating unit 300 does not need to be switched, and there is no need for cumbersome and complicated direction switching structure, which saves more space and avoids radiation leakage caused by failure of the switching structure.
  • the guiding device 500 may include a driving mechanism 550, which may include a power structure 551 and/or a driving frame 552 that carries the first transmission part 210 and the neutron generating part 300, the power structure 551 includes but is not limited to an electronic or pneumatic connecting rod, a robot and its structure, a mechanical arm, etc.
  • the driving frame 552 may include a group of rollers arranged on both sides of the first guide 510 and/or the second guide 520, and accordingly, roller grooves may be provided on both sides of the first guide 510 and/or the second guide 520, so that the rollers can slide in the roller grooves, so that the driving mechanism 550 can drive the first transmission part 210 and the neutron generating part 300 to move on the first guide 510 and/or the second guide 520.
  • the neutron capture therapy system may also include a cooling device 310 and a detection device 320 for cooling the neutron generating unit 300.
  • the cooling device 310 may include a pipeline located at the end of the transmission device 200 and in plane contact with the neutron generating unit 300, and at least two cooling pipelines arranged up and down along the arrangement direction of the transmission device, wherein the two cooling pipelines arranged up and down may be partially arranged in the retarder, and the cooling pipeline is in a " ⁇ "-shaped structure, connected to an external cooling system, and the neutron generating unit 300 is heated by the accelerated irradiation of high energy level, and the neutron generating unit 300 is efficiently cooled by the cooling medium flowing through the cooling pipeline.
  • the detection device 320 may be a temperature sensor, including a detection circuit arranged along the transmission device 200 and connected to the control end, for detecting the real-time temperature of the cooling device 310.
  • the detection device 320 may also be a charged particle sensor for detecting the charged particle beam condition before the first transmission part 210 reacts with the neutron generating part 300; it may also be a vacuum pressure sensor for detecting the vacuum condition of the first transmission part 210; it may also be a neutron detector for detecting the condition of neutrons generated after a nuclear reaction occurs.
  • the detection device 320 includes but is not limited to electronic sensors, proximity sensors, capacitive sensors, transducers or other forms of sensors.
  • the first transmission part 210 When the first transmission part 210 is located at the first position L1, the pipeline of the cooling system outside the cooling pipeline is connected and is in a state where cooling can be achieved; the detection circuit and the circuit of the control end are in a connected state, and real-time monitoring and data transmission and feedback can be achieved.
  • the first transmission part 210 When the first transmission part 210 is located at the second position L2, the cooling pipeline of the cooling system outside the cooling pipeline is disconnected, and the connection line between the detection circuit and the control end is disconnected.
  • the cooling device 310 and the partially disconnected pipelines, and the partially disconnected circuits of the detection device 320 are all arranged in the first transmission part 210, together
  • the first transmission part 210 moves to the second position L2 to be recovered and replaced.
  • At least one of the first radiation shielding device 600 and the second radiation shielding device 700 is provided with an openable and closable part 610, so that when the openable and closable part 610 is closed, a closed shielding space is formed; when the openable and closable part 610 is opened, the radiation object/neutron generating unit 300 can pass through the openable and closable part 610.
  • the first radiation shielding device 600 has an openable and closable part 610, and when the openable and closable part 610 is closed, the first radiation shielding device 600 forms a closed shielding space to shield the radiation object/neutron generating unit 300 located in the first radiation shielding device 600; when the openable and closable part 610 is opened, the radiation object/neutron generating unit 300 can pass through the receiving opening formed by the openable and closable part 610, so that the transfer device 800 can take out the radiation object/neutron generating unit 300.
  • the openable and closable part 610 may be made of a material having a shielding effect, for example, a material containing Pb, and the opening and closing of the openable and closable part 610 includes but is not limited to opening methods such as rotation and sliding.
  • an openable and closable part control device 620 is provided, and the openable and closable part 610 is provided with a signal receiver, which is connected to the openable and closable part control device 620 in communication, and may be connected by wire or wirelessly, wherein the wireless connection may be a Bluetooth connection or a WIFI connection, so that the opening and closing of the openable and closable part 610 can be remotely controlled by the openable and closable part control device 620.
  • the opening and closing of the openable and closable part 610 can be remotely controlled outdoors to reduce radiation contamination of the operator.
  • the bottom of the first radiation shielding device 600 and/or the second radiation shielding device 700 may also be provided with a movable portion 630.
  • the movable portion 630 may be a wheel, so that the first radiation shielding device 600 and/or the second radiation shielding device 700 can move between two determined positions.
  • the initial position is in the first room where the beam shaping body is located
  • the terminal position is set in the second room for storing the radiation/neutron generating unit
  • the transfer device and the second radiation shielding device are set in the second room
  • the first transmission unit moves into the second room after entering the first radiation shielding device and the first transmission unit is transferred from the first radiation shielding device to the second radiation shielding device by the transfer device.
  • the initial position and the terminal position can be defined according to the actual use scenario, rather than an absolute position, and there may also be multiple initial positions and/or multiple terminal positions during the transfer process.
  • the first radiation shielding device 600 moves between a preset initial position and a preset terminal position.
  • the initial position may also be a storage position when not in use, and the terminal position may also be a position when the radiation material/neutron generating unit is transferred.
  • the radiation/neutron generating part transfer system further includes a positioning system, and the positioning system is used to locate the positions of the first radiation shielding device and the second radiation shielding device relative to the transfer device.
  • the positioning system includes a movable part control device 640, see FIG8 , the movable part 630 may be provided with a signal receiver, and the movable part control device 640 is connected to the movable part 630, for example, it may be a wired or wireless connection, and the wireless connection includes a WIFI, infrared or Bluetooth connection, etc., so that the movable part control device 640 can control the movement of the first radiation shielding device 600 and/or the second radiation shielding device 700, so that it moves to a preset position and is positioned.
  • the positioning system includes a first alignment mechanism 641 and a second alignment mechanism 642 (see FIG1 ), wherein the first alignment mechanism 641 is used to detect whether the first radiation shielding device 600 has moved to a preset position, and the second alignment mechanism 642 is used to detect whether the second radiation shielding device has moved to a preset position.
  • a detection point is set on the first radiation shielding device 600 and/or the second radiation shielding device 700, and an infrared or ultrasonic detection probe is set on the transfer device 800. The detection probe determines the position of the detection point to achieve the first radiation shielding device 600 and/or the second radiation shielding device 700. The position of the device 700 is determined.
  • the preset terminal position of the first radiation shielding device 600 when the preset terminal position of the first radiation shielding device 600 is set as the guiding position of the guiding device 500, when the first radiation shielding device 600 moves to the terminal position, it can receive the radiation/neutron generating unit 300 guided by the guiding device 500, so as to facilitate the transfer device 800 to perform the transfer operation.
  • the guiding device 500 includes the first guiding part 510, the second guiding part 520 and the third guiding part 530, since the third guiding part 530 is arranged in the first radiation shielding device 600, the terminal position of the movement of the first radiation shielding device 600 is set as the guiding position of the second guiding part 520, so that when the first radiation shielding device 600 moves to the terminal position, the second guiding part 520 and the third guiding part 530 are operably connected, and the radiation/neutron generating unit 300 and the first transmission part 210 can be transferred from the second guiding part 520 to the third guiding part 530, thereby entering the first radiation shielding device 600.
  • the first radiation shielding device 600 is provided with an openable and closable part 610 and a movable part 630.
  • the operator can remotely control the movable part 630 through the movable part control device 640 to move the first radiation shielding device 600 to the guiding position of the guiding device 500, so that the guiding device 500 can guide the radiation/neutron generating part 300 and the first transmission part 210 into the first radiation shielding device 600.
  • the positioning system further includes a positioning part 631 for marking or stopping arranged on the ground, and the positioning part 631 corresponds to the guiding position of the guiding device 500.
  • the openable and closable part control device 620 controls the openable and closable part 610 to open, receive the first transmission part 210 and the radiation/neutron generating part 300 guided by the guiding device 500, and then the first radiation shielding device 600 can be controlled manually or through the movable part control device 640 to approach the second radiation shielding device 700.
  • the first radiation shielding device 600 moves from the external space into the first space R1, is positioned to a preset terminal position, and docks with the lower end of the second guide member 520.
  • the positioning member 631 may be one or more marks, stoppers, or recessed structures.
  • a buffer 650 may be further provided in the internal accommodation cavity of the first radiation shielding device 600 and/or the second radiation shielding device 700 to buffer the first transmission part 210 and the neutron generating part 300 to prevent them from colliding with the inner wall and being damaged. After the first transmission part 210 and the neutron generating part 300 contact the buffer 650, the buffer 650 generates elastic deformation and applies an opposite force in the moving direction of the first transmission part 210 to reduce the speed of the first transmission part 210, so that the first transmission part 210 and the neutron generating part 300 can be statically accommodated in the first radiation shielding device 600 or the second radiation shielding device 700.
  • the buffer 650 may be a different mechanical buffer structure such as a spring, or an elastic material such as a rubber pad or an airbag.
  • the transferred object may include only the radiation object, such as only the neutron generating unit 300 ; it may also include other structures related to the radiation object, such as the neutron generating unit 300 and the first transmission unit 210 .
  • the first radiation shielding device 600 is provided with a first accommodating cavity capable of accommodating the radiation object/neutron generating unit 300 and a first openable and closable member 610' for shielding the first accommodating cavity
  • the second radiation shielding device 700 is provided with a second accommodating cavity capable of accommodating the radiation object/neutron generating unit 300
  • the transfer device 800 is used to transfer the radiation object/neutron generating unit 300 between the first accommodating cavity and the second accommodating cavity.
  • the first radiation shielding device 600 may also be provided with a first radiation shielding device handle 660, which is convenient for the operator to hold and move.
  • the first closable member 610' can be hingedly connected to the box body of the first radiation shielding device 600, and ...
  • the mechanism 611 is driven to open the first radiation shielding device 600 with one side of the top of the box body as the rotation center line, thereby exposing the first accommodating cavity.
  • the cover opening mechanism 611 is connected to the openable and closable member control device 620 for communication, and the openable and closable member control device 620 controls the cover opening mechanism 611 to open the first openable and closable member 610'.
  • the cover opening mechanism 611 when the cover opening mechanism 611 is extended, the first openable and closable member 610' is driven to rotate to open.
  • the first openable and closable part 610' may include a first monomer 612 and a second monomer 613 rotatably connected to the first monomer 612.
  • the first monomer 612 and the box body of the first radiation shielding device 600 are also rotatably connected.
  • the cover opening mechanism 611 is connected to the first monomer 612. Such an arrangement enables the first monomer 612 to rotate when the cover opening mechanism 611 is extended. At this time, the second monomer 613 moves with the first monomer 612 and approaches the first monomer 612, as shown in Figure 9, to achieve folding, thereby exposing the first accommodating cavity.
  • the base 830 may include a frame structure for achieving basic support, such as: a plurality of longitudinal rods 831 and a plurality of cross rods 832 connected to each other, and the plurality of longitudinal rods 831 and the plurality of cross rods 832 are combined to form a support frame.
  • the length of the longitudinal rod 831 is greater than the height of the first radiation shielding device 600 and the second radiation shielding device 700, and it is ensured that it will not block the opening of the first openable and closable member 610'.
  • the area between adjacent longitudinal rods 831 can be used to place the first radiation shielding device 600 or the second radiation shielding device 700, so that there is no obstruction in front and behind, and it is convenient to move.
  • a control device can be provided, such as being provided on the longitudinal rod 831, so as to facilitate electrical connection with the adjacent controlled mechanism to achieve control thereof; it can also be provided in a remote control form that is detachable from the base 830.
  • the base 830 is provided with a baffle 833 at the top.
  • the base 830 may be further provided with a plurality of oblique rods 834 , which are connected between the middle of some longitudinal rods 831 and the middle between the transverse rods 832 , so as to play a supporting role and enhance the stability of the frame support of the base 830 .
  • the transfer device 800 includes a first actuator 840 movably connected to the moving member 820, and the first actuator 840 can pick up or release the radiation/neutron generating unit, and move the radiation/neutron generating unit out of the first radiation shielding device 600 through the third guide 530, so as to transfer the radiation/neutron generating unit.
  • the first actuator 840 can move with the moving member 820.
  • the first direction can be a direction from the opening of the first accommodating cavity of the first radiation shielding device 600 to the opening of the second accommodating cavity of the second radiation shielding device 700; or it can be a preset direction for the moving member 820 to move along the base 830, such as a horizontal direction parallel to the base 830.
  • the first actuator 840 can be operable to reach the corresponding position of the first radiation shielding device 600 and the corresponding position of the second radiation shielding device 700, such as directly above or obliquely above.
  • the first actuator 840 moves on the base 830 to the top of the first radiation shielding device 600, picks up the radiation object/neutron generating unit in the first accommodating cavity and then moves to the top of the second radiation shielding device 700, then moves the radiation object/neutron generating unit into the second radiation shielding device 700 through the fourth guide portion 531, releases the radiation object/neutron generating unit to the second accommodating cavity, and realizes the transfer of the radiation object/neutron generating unit.
  • the first actuator 840 includes a first actuator 842 (see FIG. 11 ). Furthermore, the first actuator 840 also includes a retractable first movable part 841, which can extend or contract in a second direction different from the first direction, and the first actuator 842 is arranged at the retractable end of the first movable part 841.
  • the second direction can be a direction approaching or moving away from the first radiation shielding device 600 and/or the second radiation shielding device 700, such as a vertical direction above the first radiation shielding device 600 and/or the second radiation shielding device 700, thereby driving the first actuator 842 to move relative to the movable part 820 along the second direction.
  • the first actuator 842 is used to acquire or release the radiation/neutron generating part 300.
  • the first actuator 842 can be a structure such as a clamp, a support platform, a buckle, etc.
  • Component 842 corresponds to the shape and size of the radiation object/neutron generating unit, can enter the accommodating cavity of the first radiation shielding device 600 and/or the second radiation shielding device 700, and can pick up the radiation object/neutron generating unit to a certain height.
  • the first actuator 842 includes a plurality of separation and combination members 842a, a plurality of supporting members 842b and a plurality of clamping members 842c.
  • the plurality of clamping members 842c are spaced apart and can be clamped in a preset position of the radiation/neutron generating unit 300.
  • the plurality of clamping members 842c are respectively connected to two relatively arranged separation and combination members 842a that can be close to or away from each other through the supporting member 842b, so that when the two separation and combination members 842a are relatively close to each other, the plurality of clamping members 842c follow and approach each other, reduce the distance between them, and realize clamping; when the two separation and combination members 842c are away from each other, the plurality of clamping members 842c are away from each other, increase the distance between them, and realize Song font.
  • the two separation and combination members 842a can be moved away and approached by a cylinder, a telescopic rod, a manipulator and other mechanisms.
  • the two separation and combination members 842a first move away from each other and move toward the radiation object/neutron generator 300.
  • the preset position is reached, the two separation and combination members 842a approach each other, so that the multiple clamping members 842c approach each other, thereby clamping at the preset position of the radiation object/neutron generator 300, such as the vacant position at the lower part of the flange of the radiation object/neutron generator 300, to achieve the clamping and fixing of the radiation object/neutron generator 300.
  • similar structures can be used to transfer the radiation isolation member 710.
  • the clamping member 842c when the first transmission part 210 moves with the neutron generating part (equivalent to the radiation object) 300, the clamping member 842c can also be clamped in the gap position of the first transmission part 210.
  • the clamping member 842c when the first transmission part 210 is provided with a cooling device 310 or other structures, the clamping member 842c can be clamped in the gap position of the neutron generating part 300 without contacting the cooling device 310 or other structures, so as to avoid damage caused by improper clamping.
  • the first end of the first movable member 841 is movably connected to the movable member 820, for example, it can be a sliding connection.
  • the second end of the first movable member 841 is connected to the first actuator 842, so that when the first movable member 841 moves to the preset position, it can carry the first actuator 842 to move to the preset position, and the preset position can be the corresponding position of the first radiation shielding device 600 and the second radiation shielding device 700, such as the first accommodating cavity of the first radiation shielding device 600 and the second accommodating cavity of the second radiation shielding device 700.
  • the first movable member 841 can be controlled to extend or shorten so that the first actuator 842 can reach the first accommodating cavity and the second accommodating cavity.
  • the first movable member 841 is driven by a first power member (not shown) to achieve telescopic extension, and when extended, it is close to the first radiation shielding device 600 or the second radiation shielding device 700, and vice versa, when shortened, it is away from the first radiation shielding device 600 or the second radiation shielding device 700.
  • the first actuator 842 can be electrically connected to the driving mechanism by the first drag chain 843, and the first power member can be in the form of a cylinder, etc.
  • the air pipe and cable used by the cylinder can be extended into the first drag chain 843 for protection to avoid entanglement of multiple cables or air pipes. It is easy to understand that the first movable member 841 can drive the first actuator 842 to move in other forms that can be easily thought of by those skilled in the art.
  • the radiation object/neutron generating unit transfer system also includes a radiation isolation element 710.
  • the radiation isolation element 710 can be disposed together with the radiation object/neutron generating unit 300 in the second accommodating chamber to isolate the radiation object/neutron generating unit 300 and reduce its radiation contamination to the outside world. It is easy to understand that the radiation isolation element 710 can be matched with the opening specification of the second accommodating chamber, so that after the radiation object/neutron generating unit 300 is placed in the second accommodating chamber, the radiation isolation element 710 is placed above the radiation object/neutron generating unit 300, so as to ensure that the second accommodating chamber is in a sealed state.
  • the radiation isolation element 710 can be configured on a mobile carrier 711, and the mobile carrier 711 can be provided with a carrier handle 712 to facilitate the operator to hold the carrier handle 712 to place the mobile carrier 711 in a preset position.
  • the mobile carrier 711 further includes a positioning structure 714 for keeping the radiation isolation member 710 aligned with the transfer, which is conducive to maintaining the predetermined angle of the radiation isolation member 710 during the transfer process to achieve further shielding of the radiation object/neutron generating unit.
  • the radiation isolation member 710 is made of radiation shielding material, including but not limited to being made of lead (Pb), or a composite structure of metal-clad lead.
  • the inner surface of the radiation isolation member 710 includes a support structure 715.
  • a support structure 715 When one end of the radiation object/neutron generating unit has a protruding structure, such as the target end of the neutron generating unit, there will be a protruding cooling water pipeline and other structures.
  • the material of the support structure 715 can be selected from a material with greater rigidity than the main shielding material.
  • the support structure 715 directly bears the load on the target end plane and the inner surface of the radiation isolation member 710 through its own rigid structure, thereby forming a protective space S, which plays the role of supporting and protecting the cooling water pipe or other structures to prevent them from being crushed by the radiation isolation member 710 with a larger dead weight.
  • the thickness of the structure of the radiation isolation member 710 close to the radiation object is larger, and the thickness of the structure away from the radiation object is smaller.
  • the radiation isolation member 710 includes multiple thicknesses and/or gradient thicknesses, which is conducive to reducing the deadweight and forming targeted shielding protection.
  • the thickness of the structure of the radiation isolation member 710 close to the opening of the first accommodating cavity or the opening of the second accommodating cavity is larger, and the thickness of the structure away from the opening of the first accommodating cavity or the opening of the second accommodating cavity is smaller.
  • the transfer device 800 further includes a second actuator 850 movably connected to the moving member 820, so that in the first direction, the second actuator 850 can move relative to the base 830 to the corresponding position of the radiation isolation member 710 and the corresponding position of the second radiation shielding device 700.
  • the second actuator 850 can pick up or release the radiation isolation member 710, so that when the second actuator 850 is transferred to the corresponding position of the radiation isolation member 710, the radiation isolation member 710 can be picked up.
  • the second actuator 850 transfers the radiation isolation member 710 to the corresponding position of the second radiation shielding device 700, and then further places the radiation isolation member 710 into the second accommodating cavity.
  • the second actuator 850 can adopt the cooperation of the slider and the slide groove, the cooperation of the guide wheel and the guide rail or other methods to realize the operative movement in the first direction.
  • the second actuator 850 includes a second actuator 852. Further, the second actuator 850 also includes a retractable second movable member 851, which can be retracted in a second direction different from the first direction.
  • the fixed end of the second movable member 851 is movably connected to the moving member 820, and the retractable end of the second movable member 851 is connected to the second actuator 852, so that the second actuator 852 can change position following the extension or shortening of the second movable member 851.
  • the second actuator 852 can be a clamp, a support platform, a buckle or other structure capable of picking up the radiation isolation member 710.
  • the top of the radiation isolation member 710 may be provided with an isolation member handle 713, and the second actuator 852 has a clamping structure.
  • the second movable member 851 is located at the corresponding position of the radiation isolation member 710, the second movable member 851 is extended, and the clamping structure can extend into the isolation member handle 713 for locking and matching.
  • the second movable member 851 rises, it can carry the radiation isolation member 710 to rise in the second direction.
  • it After moving to the corresponding position of the second radiation shielding device 700, it carries the radiation isolation member 710 down, so that the radiation isolation member 710 enters the second radiation shielding device 700, and then releases the clamping structure.
  • the extension and retraction of the second movable member 851 can be driven by a second power member (not shown), which can be in the form of a cylinder, etc.
  • the second actuator 852 can be electrically connected to the driving mechanism by a second drag chain 853. It is easy to understand that the second movable member 851 can also use other forms that can be easily thought of by those skilled in the art to drive the second actuator 852 to move.
  • FIG. 12 shows a schematic diagram of the structure of the second radiation shielding device 700 and the third actuator 860 in one embodiment.
  • the fourth guide portion 531 can be arranged in the second radiation shielding device box, and the second radiation shielding device 700 can be provided with a second openable and closable member 720 that can be opened or closed.
  • the second openable and closable member 720 is used to shield the second radiation shielding device.
  • the transfer device 800 may further include a third actuator 860 movably connected to the movable member 820, the third actuator 860 can open or cover the second openable and closable member 720, and in the first direction, the third actuator 860 can move with the movable member 820.
  • the second openable and closable member 720 may be a cover body arranged above the second radiation shielding device 700, the second openable and closable member 720 and the second radiation shielding device 700 can be hingedly connected or separated from each other to achieve opening and closing, and when the third actuator 860 moves to the position of the second radiation shielding device 700, the second openable and closable member 720 can be opened.
  • the second openable and closable member 720 can be separated from the second radiation shielding device 700 when opened, and at this time, the third actuator 860 can pick up the second openable and closable member 720 after opening the second openable and closable member 720 and carry it to move.
  • the second radiation shielding device 700 may also be provided with a second radiation shielding device handle 730 to facilitate the operator to move the second radiation shielding device.
  • the third actuator 860 includes a third actuator 862, which can open or cover the second openable and closable member 720. Further, the third actuator 860 also includes a retractable third movable member 861. It is easy to understand that, with reference to the forms of the first and second actuators, the third movable member 861 can be retracted in the second direction, and the fixed end of the third movable member 861 is movably connected to the movable member 820, and the connection method can be a sliding connection or a rotating connection. The movable end of the third movable member 861 is connected to the third actuator 862.
  • the third actuator 862 can reach the second openable and closable member 720 and perform an opening or closing operation on the second openable and closable member 720.
  • the third actuator 862 is controlled by the third power member 864 to realize the opening and closing of the second openable and closable member 720, such as a cylinder or the like.
  • the electrical connection can be achieved by the third drag chain 863.
  • the second openable and closable member 720 is provided with a second openable and closable member handle 721.
  • the third actuator 862 is a clamping structure capable of holding the second openable and closable member handle 721, such as an expandable or retractable manipulator. After the manipulator holds the second openable and closable member handle 721, the third movable member 861 is retracted to open the second openable and closable member 720, and the third movable member 861 is extended to close the second openable and closable member 720.
  • the first radiation shielding device 600, the second radiation shielding device 700 and the radiation isolation member 710 are sequentially arranged, and correspondingly, the first actuator 840, the third actuator 860 and the second actuator 850 are sequentially arranged. Specifically, when the moving member 820 moves relative to the base 830 to the third position of the base (see FIG.
  • the positions of the first radiation shielding device 600 and the first actuator 840 correspond, the positions of the third actuator 860 and the second radiation shielding device 700 correspond, and the positions of the second actuator 850 and the radiation isolation member 710 correspond, so that at this moment the first actuator 840 can pick up the radiation object/neutron generating part in the first accommodating cavity of the first radiation shielding device 600, and preferably, at the same time, the third actuator 860 can open the second openable and closable member 720, and at the same time, the second actuator 850 can pick up the radiation isolation member 710.
  • This setting makes it possible to execute multiple tasks in parallel within the same time period, realize synchronous adjustment and alignment of multiple actuators, and directly execute them without adjusting the position, reducing the work steps and working time for individual adjustment and alignment of each component, greatly shortening working time, speeding up work efficiency, and helping to reduce radiation exposure and improve environmental safety indicators.
  • the position of the moving member 820 relative to the base 830 includes a third position, a fourth position and a fifth position (see FIGS. 18 to 20 , FIG. 18 is a diagram of the moving member 820).
  • FIG. 19 is a schematic diagram of the moving member 820 in the third position
  • FIG. 19 is a schematic diagram of the moving member 820 in the fourth position
  • FIG. 20 is a schematic diagram of the moving member 820 in the fifth position, and the components in the figures are for schematic purposes only).
  • the first actuator 840 corresponds to the position of the first radiation shielding device 600
  • the third actuator 860 corresponds to the position of the second radiation shielding device 700
  • the second actuator 850 corresponds to the position of the radiation isolation member 710.
  • the first actuator 840 corresponds to the position of the second radiation shielding device 700.
  • the moving member 820 moves from the fourth position along the first direction to the fifth position, and the second actuator 850 corresponds to the position of the second radiation shielding device 700.
  • the moving member 820 when the moving member 820 is driven, it can be slidably connected with the base 830.
  • a guide rail 821 can also be provided on the base 830, and the moving member 820 can slide on the guide rail 821, so that the moving member 820 is slidably connected with the base 830.
  • the moving member 820 can be operably moved to the corresponding positions of the first radiation shielding device 600 and the second radiation shielding device 700 relative to the base 830.
  • the embodiment of the present application also provides a radiation transfer method for the radiation transfer system involved above.
  • the implementation solution provided by the transfer method to solve the problem is similar to the implementation solution recorded in the above transfer system, so the specific limitations in one or more radiation transfer methods provided below can refer to the limitations of the radiation transfer system above, and will not be repeated here.
  • the present application also discloses a radiation transfer method, which is applied to a radiation transfer system.
  • the radiation transfer system includes a first radiation shielding device 600, a second radiation shielding device 700 and a transfer device 800.
  • the radiation transfer method includes: operably transferring the radiation 300 from the first radiation shielding device 600 to the second radiation shielding device 700 through the transfer device 800.
  • the present application also discloses a radiation transfer system applied to a neutron capture system, in which the radiation to be transferred in the radiation transfer system is a neutron generator, wherein the transfer method for the neutron generator further includes: operably transferring the neutron generator 300 from the first radiation shielding device 600 to the second radiation shielding device 700 through the transfer device 800.
  • the neutron generating part transfer system further includes a positioning system
  • the neutron generating part transfer method further includes: positioning the first radiation shielding device 600 and/or the second radiation shielding device 700 relative to the transfer device 800 by the positioning system.
  • the positions of the first radiation shielding device 600 and the second radiation shielding device 700 are relative to the preset position of the transfer device 800.
  • the size of the transfer device 800 is fixed. Only when the first radiation shielding device 600 and the second radiation shielding device 700 are moved to the preset position, the transfer device 800 can realize the transfer of the neutron generating unit.
  • the first radiation shielding device 600 and/or the second radiation shielding device 700 are moved to the preset position, and the positioning is realized by the positioning system, and then the transfer device 800 realizes the transfer of the neutron generating unit 300.
  • the first radiation shielding device 600 and/or the second radiation shielding device 700 has a movable part 630, and the movable part 630 is controlled by the movable part control device 640 to realize the movement.
  • the transfer device includes a substrate 630 and a moving member 620
  • the neutron generating unit transfer method includes: on the substrate 630 , controlling the moving member 620 to move from a corresponding position of the first radiation shielding device 600 to a corresponding position of the second radiation shielding device 700 .
  • the moving member 820 When the moving member 820 is driven, it can be operably moved relative to the base 830 and can be moved to the first radiation shielding device 600. and the corresponding position of the second radiation shielding device 700, thereby realizing the transfer of the neutron generating part 300.
  • the moving member 820 is slidably connected to the base 830.
  • the transfer device 800 includes a first actuator 840, which is movably disposed on the moving member 820; the first actuator 840 can move relative to the base 830 together with the moving member 820; the neutron generating unit transfer method includes: controlling the moving member 820 to drive the first actuator 840 to move relative to the base 830, so that it moves to the corresponding position of the first radiation shielding device 600, and controlling the first actuator 840 to obtain the neutron generating unit 300 located in the first radiation shielding device 600; controlling the moving member 820 to drive the first actuator 840 to move relative to the base 830, so that it drives the neutron generating unit 300 to move to the corresponding position of the second radiation shielding device 700, and controlling the first actuator 840 to release the neutron generating unit 300 to the second radiation shielding device 700.
  • the first actuator 840 can pick up or release the neutron generating unit 300, thereby transferring the neutron generating unit 300.
  • the first direction can be a direction from the opening of the first accommodating cavity of the first radiation shielding device 600 to the opening of the second accommodating cavity of the second radiation shielding device 700; or it can be a preset direction for the moving member 820 to move along the base 830, such as a horizontal direction parallel to the base 830, so that the first actuator 840 can reach the corresponding position of the first radiation shielding device 600 and the corresponding position of the second radiation shielding device 700, for example, it can be directly above or obliquely above.
  • the first actuator 840 moves on the base 830 to the top of the first radiation shielding device 600, picks up the neutron generating unit 300 located in the first accommodating cavity, and then moves to the top of the second radiation shielding device 700 to release the neutron generating unit to the second accommodating cavity, thereby realizing the transfer of the neutron generating unit 300.
  • the neutron generating unit transfer system also includes a radiation isolation member 710 and a second actuator 850, and the second actuator 850 is movably disposed on a moving member 820;
  • the neutron generating unit transfer method also includes: controlling the moving member 820 to drive the second actuator 850 to move relative to the substrate 830, so that it moves to the corresponding position of the radiation isolation member 710, and obtains the radiation isolation member 710; controlling the moving member 820 to drive the second actuator 850 to move relative to the substrate 830, so that it drives the radiation isolation member 710 to move to the corresponding position of the second radiation shielding device 700, and releases the radiation isolation member 710 to the second radiation shielding device 700.
  • the radiation isolation member 710 can be disposed together with the neutron generating unit 300 in the second accommodating chamber to isolate the neutron generating unit 300 and reduce its radiation contamination to the outside.
  • the second actuator 850 can move relative to the base 830 to the corresponding position of the radiation isolation member 710 and the corresponding position of the second radiation shielding device 700.
  • the second actuator 850 can pick up or release the radiation isolation member 710, so that when the second actuator 850 is transferred to the corresponding position of the radiation isolation member 710, the radiation isolation member 710 can be picked up.
  • the second actuator 850 is transferred to the corresponding position of the second radiation shielding device 700 and then the radiation isolation member 710 is placed in the second accommodating chamber.
  • the neutron generating unit transfer system further includes a third actuator 860, which is movably disposed on the movable part 820; the second radiation shielding device 700 has a second openable and closable part 720; the neutron generating unit transfer method further includes: controlling the movable part 820 to drive the third actuator 860 to move relative to the base 830, so that it moves to the corresponding position of the second radiation shielding device 700, and covering the second openable and closable part 720 by the third actuator 860.
  • the neutron generating part transfer system further includes a second openable and closable member 720 for shielding the second accommodating cavity in the second radiation shielding device 700, and the second openable and closable member 720 can be opened or closed.
  • the transfer device 800 further includes a third actuator 860 movably connected to the moving member 820, and the third actuator 860 can open or close the second openable and closable member 720. In the first direction, the third actuator 860 can move with the moving member 820.
  • the second openable and closable member 720 can be a cover body arranged above the second radiation shielding device 700, and the second openable and closable member 720 and the second radiation shielding device 700 can be hingedly connected or separated from each other.
  • the second openable and closable member 720 can be opened.
  • the second closable member 720 can be separated from the second radiation shielding device 700 when opened.
  • the third actuator 860 can pick up the second closable member 720 and carry it to move after opening the second closable member 720.
  • FIG. 15 shows a method for transferring a radiation/neutron generating unit in one embodiment, including:
  • the first radiation shielding device 600 and the second radiation shielding device 700 are first moved to the preset position of the transfer device 800 by the positioning system, and then the moving member 820 is controlled to move to the corresponding position of the first radiation shielding device 600, and the radiation object/neutron generating unit 300 located in the first radiation shielding device 600 is picked up by the first actuator 840. Then, the moving member 820 is controlled to drive the first actuator 840 to move to the corresponding position of the second radiation shielding device 700, and the radiation object/neutron generating unit 300 is released into the second radiation shielding device 700 by the first actuator 840.
  • the moving member 820 is controlled to move to the corresponding position of the radiation isolation member 710, and after the radiation isolation member 710 is picked up by the second actuator 850, the moving member 820 is controlled to move to the second radiation shielding device 700, and the radiation isolation member 710 is released into the second radiation shielding device 700, so as to shield the radiation object/neutron generating unit 300.
  • the moving part 820 is controlled to drive the third actuator 860 to cover the second closable part 720 of the second radiation shielding device 700, thereby sealing the radiation object/neutron generating unit 300.
  • the radiation shielding device 600 is provided with a first openable and closable member 610'; the first radiation shielding device 600, the second radiation shielding device 700 and the radiation isolation member 710 are arranged in sequence, the first actuator 840, the third actuator 860 and the second actuator 850 are arranged in sequence, and the radiation/neutron generating unit transfer method further includes:
  • the first openable and closable member 610' can be opened by the cover opening mechanism 611.
  • control the first actuator 840 to obtain the radiation/neutron generating unit 300 located in the first radiation shielding device 600; control the third actuator 860 to open the second openable and closable member 720 for shielding on the second radiation shielding device 700; control the second actuator 850 to obtain the radiation isolation member 710.
  • the moving member 820 is controlled to move in the first direction so as to be able to move to the fifth position of the base 830 , at which time the second actuator 850 corresponds to the position of the second radiation shielding device 700 .
  • the first actuator 840, the third actuator 860 and the second actuator 850 are driven to move as a whole by the movement of the moving member 820, and the radiation/neutron generating unit can be transferred from the first accommodating chamber of the first radiation shielding device 600 to the second accommodating chamber of the second radiation shielding device 700 only by controlling the moving member 820, and there is no need to separately set control components for controlling the first actuator 840, the second actuator 850 and the third actuator 860, and the degree of integration is high.
  • the first actuator 840, the second actuator 850 and the third actuator 860 can also be controlled and moved separately, or the three can be integrated into one component, such as a mechanical arm, to implement the above transfer of the radiation/neutron generating unit.
  • Figure 17 shows a radiation material/neutron generating unit transfer system in one embodiment, which also includes a master control device 1500, which includes a cover opening module 1502, a moving part control module 1504, a first execution module 1506, a second execution module 1508, a third execution module 1510 and a moving module 1512.
  • master control device 1500 which includes a cover opening module 1502, a moving part control module 1504, a first execution module 1506, a second execution module 1508, a third execution module 1510 and a moving module 1512.
  • the cover opening module 1502 is used to control the opening and closing of the cover opening mechanism 611 .
  • the moving member control module 1504 is used to control the moving member 820 to move relative to the base 830 so that the moving member 820 can reach the third position, the fourth position and the fifth position of the base 830 .
  • the first execution module 1506 is used to control the first execution mechanism 840 to execute picking up or releasing the radiation/neutron generating unit 300 .
  • the second execution module 1508 is used to control the second execution mechanism 850 to pick up or release the radiation isolation piece 710 .
  • the third execution module 1510 is used to control the third execution mechanism 860 to open or close the second openable and closable member 720 .
  • the moving module 1512 is used to control the first radiation shielding device 600 , the second radiation shielding device 700 and the radiation isolation element 710 to move to a preset position. Schematically, this can be achieved by controlling the movable part 630 and the moving carrier 711 .
  • the labels in the flowcharts involved in the above-mentioned embodiments can include the labels of multiple methods or multiple stages, and the labels or stages of these methods are not necessarily executed at the same time, but can be executed at different times, and the execution order of the labels or stages of these methods is not necessarily carried out in sequence, but can be executed in turn or alternately with other labels or at least a part of the steps or stages in other labels.
  • the radiation/neutron generating unit transfer system further includes a display device 870, which may be a non-touch display screen or a touch display screen.
  • the display device 870 is electrically connected to the master control device 1500, and is provided with areas corresponding to the cover opening module 1502, the moving part control module 1504, the first execution module 1506, the second execution module 1508, the third execution module 1510, and the moving module 1512, respectively, so that the corresponding modules can be controlled by triggering the corresponding areas to implement the above-mentioned radiation/neutron generating unit transfer method.
  • the display device 870 may be arranged on the transfer device 800, or may be directly or detachably arranged at other positions of the radiation/neutron generating unit transfer system.
  • the trigger operation may specifically be a touch operation, a cursor operation, a key operation, or a voice operation.
  • the touch operation can be a touch click operation, a touch press operation or a touch slide operation, the touch operation can be a single-point touch operation or a multi-point touch operation;
  • the cursor operation can be an operation of controlling the cursor to click or an operation of controlling the cursor to press;
  • the key operation can be a virtual key operation or a physical key operation, etc.
  • the radiation transfer system in the present application is conducive to realizing the transfer operation of one or more radiation objects multiple times or repeatedly in a short time in a radiation field, and the operation is independent and safe.
  • the transfer system of the neutron generating unit can realize the operation of transferring the neutron generating unit in a flexible time through the structure and method in the above embodiment, without being limited by the number of neutron generating units or the number of transfers.
  • the radiation materials involved in the present application include but are not limited to the neutron generating part in the neutron capture therapy system, and can also be the radiation materials involved in proton therapy, heavy particle therapy and other particle therapies, and can include radiation materials in other medical and/or non-medical fields.
  • the structure and transfer method of the radiation material transfer system involved in the present application are not limited to the neutron generating part in the neutron capture therapy system exemplified in the above-mentioned embodiments.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

La présente demande concerne un système de transfert et un procédé de transfert de matériau radioactif. Le système de transfert de matériau radioactif comprend : un premier dispositif de protection contre les rayonnements, utilisé au moins pour loger un matériau radioactif ; un second dispositif de protection contre les rayonnements, utilisé au moins pour stocker le matériau radioactif ; et un dispositif de transfert, utilisé pour transférer le matériau radioactif contenu dans le premier dispositif de protection contre les rayonnements vers le second dispositif de protection contre les rayonnements. Le transfert du matériau radioactif du premier dispositif de protection contre les rayonnements vers le second dispositif de protection contre les rayonnements au moyen du dispositif de transfert pour le stockage permet de protéger le personnel de la contamination par les rayonnements, améliorant ainsi la sécurité des opérations de transfert.
PCT/CN2024/099476 2023-06-20 2024-06-17 Système de transfert et procédé de transfert de matériau radioactif Pending WO2024260304A1 (fr)

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CN202310735806 2023-06-20
CN202310735806.4 2023-06-20
CN202410501066.2A CN119170315A (zh) 2023-06-20 2024-04-24 辐射物转移系统和转移方法
CN202410501066.2 2024-04-24

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WO2024260304A1 true WO2024260304A1 (fr) 2024-12-26

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