CN110136860A - A kind of fast neutron screening plant and screening technique - Google Patents
A kind of fast neutron screening plant and screening technique Download PDFInfo
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- CN110136860A CN110136860A CN201910442753.0A CN201910442753A CN110136860A CN 110136860 A CN110136860 A CN 110136860A CN 201910442753 A CN201910442753 A CN 201910442753A CN 110136860 A CN110136860 A CN 110136860A
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- 238000012216 screening Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims description 14
- 238000001179 sorption measurement Methods 0.000 claims description 17
- 239000013307 optical fiber Substances 0.000 claims description 11
- 229910052580 B4C Inorganic materials 0.000 claims description 3
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical group B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
- G21G4/00—Radioactive sources
- G21G4/02—Neutron sources
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Abstract
The invention proposes a kind of fast neutron screening plants, its scintillator component is fully deployed, form an annulus, first motor drives the rotation of scintillator component at the uniform velocity again, at this moment incidence surface given-ioff neutron beam of the neutron occurring source to scintillator component, enable to be greater than the neutron beam emitted in a cycle directive scintillator component completely, it can shine on scintillator component in this way, and electric signal is generated by photodetector, and the electric signal is sent to microprocessor, since fast neutron can be different from other neutrons, with bigger energy, the photodetector for receiving fast neutron in this way can issue stronger signal, microprocessor receives the electric signal, and it is stored and processed, microprocessor calculates the pulse period of neutron streaming according to the strong and weak electric signal of the regularity variation of record.
Description
Technical field
The present invention relates to a kind of fast neutron screening plant and screening techniques.
Background technique
Spallation neutron target is by Accelerator driven high energy proton bombardment heavy metal target body, to obtain highneutronflux
Neutron streaming.Advanced neutron source is the basis of neutron scientific research, can be the research of material microstructure and motion state
Necessary tool is provided.Proton emission bombardment tungsten target produces pulsed neutron line, while also producing fast neutron beam.Fast neutron
Zero moment of the beam in each neutron streaming pulse period issues, and transmits with neutron streaming, can be to test if all arriving at sample
As a result very big back end is caused, is not quite similar in the neutron streaming wave band that different researchs and experiment need, therefore, in fast neutron beam
It in stream transmission procedure, needs to design a kind of device and fast neutron is filtered out, and the pulsed neutron a fluid stream needed that can let pass.
The patent of Patent No. 2017200036286 discloses a kind of spallation neutron target fast neutron filtering device, but should
Device disclosed in patent can not need to come by external third-parties equipment in advance the neutron streaming pulse period is tested
The test of neutron streaming pulse period is carried out, this just brings inconvenience to the use of equipment.
Summary of the invention
Aiming at the problem that pointing out in background technique, the present invention proposes that one kind can test the neutron streaming pulse period,
To which adjust automatically filters out the fast neutron screening plant and screening technique of fast neutron.
The technical scheme of the present invention is realized as follows:
A kind of fast neutron screening plant, including shell, neutron occurring source, scintillator component and first motor, the shell
For closed shell, neutron occurring source is mounted on a upper lateral part in shell, and neutron occurring source respective side housing wall is equipped with neutron beam
Window, scintillator component are vertically arranged at middle part, the axle center of scintillator component in shell and are located at neutron occurring source horizontal axis lower part,
And neutron occurring source corresponds to scintillator component front position, first motor is horizontally mounted the other side inside housings, first motor
Drive shaft connect with scintillator component center；
The scintillator component is circle, and scintillator component includes scintillator layers, the first skeleton, intermediate skeleton, second
Skeleton, circular ring shape film, stop adsorption layer, the second motor, be radially equipped on film and disconnect slot, the first skeleton and the second skeleton
It is connect respectively with the end of film for disconnecting slot two sides, intermedium is provided with multiple, and intermediate skeleton is located at the first skeleton and the second bone
It is connect between frame and respectively with film, the first skeleton is fixedly connected with drive shaft, and intermediate skeleton and the second skeleton are formed with drive shaft
The front of film is arranged in rotation connection, scintillator layers, stops adsorption layer that the back side of film is arranged in, and the second motor is fixedly mounted on drive
On moving axis, the second motor can drive the second skeleton to rotate；
It further include photodetector and microprocessor, photodetector has several optical fiber and several photodetectors, light
The corresponding scintillator layers setting of fibre, several photodetectors are arranged corresponding to optical fiber, and photodetector is connect with microprocessor, micro-
Processor can calculate the pulse period information of neutron streaming according to the electric signal of several photodetectors received, micro-
Processor regulated and controled according to the pulse period information first motor revolving speed and second the second skeleton of motor driven rotation
Angle.
The present invention is further arranged to, and further includes the touch display connecting with microprocessor.
The present invention is further arranged to, and the top of the shell is equipped with vacuum-pumping tube.
The present invention is further arranged to, and the internal chamber wall of the shell is equipped with boron carbide adsorption layer.
The present invention is further arranged to, and the shell two sidewalls bottom symmetrical is disposed with correlation photoelectric sensor,
The horizontal axis of photoelectric sensor is located at the fan-shaped notch position of turntable vertical direction disk.
The present invention is further arranged to, and is equipped with contracting band between adjacent two intermediate skeletons, contracting band makes adjacent two
Intermediate skeleton collapses together.
A kind of fast neutron screening technique, includes the following steps:
Step 1: being arranged an annular scintillator component in a closed shell, which can be as folding
Fan the same gathering and opening, scintillator component can be equipped with first motor in its center rotating, shell, and first motor passes through drive
Moving axis drives the rotation of scintillator component, and scintillator component includes scintillator layers, the first skeleton, intermediate skeleton, the second skeleton, annulus
The film of shape stops adsorption layer, the second motor, is radially equipped on film and disconnects slot, the first skeleton and the second skeleton respectively with it is disconnected
Slot two sides film end connection, intermedium be provided with it is multiple, intermediate skeleton between the first skeleton and the second skeleton simultaneously
It being connect respectively with film, the first skeleton is fixedly connected with drive shaft, and intermediate skeleton and the second skeleton and drive shaft, which are formed, to be rotatablely connected,
The front of film is arranged in scintillator layers, stops adsorption layer that the back side of film is arranged in, and the second motor is fixedly mounted on the driving shaft, the
Two motors can drive the second skeleton to rotate, and keep scintillator component in the open state, be flashed by the driving of first motor at the uniform velocity
Body rotation；
Step 2, neutron occurring source make at least one period to the plane of incidence given-ioff neutron of the intracorporal scintillator layers of shell
Neutron beam is mapped on scintillator；
Step 3, the luminous signal on scintillator pass to photomultiplier tube by optical fiber, and photomultiplier tube is again signal
It is sent to microprocessor, the number of signals and intensity that microprocessor records receive；
Step 4, microprocessor handles the data information of number of signals and intensity in the unit time, and finds out
The variation of regularization therein, to obtain the pulse period of neutron streaming；
Step 5, microprocessor control first motor and the work of the second motor, first motor quilt according to the pulse period
It is adjusted to suitable revolving speed, with unit of fit pulse cycle time, the rotation of second the second skeleton of motor driven makes scintillator component
It is deployed into suitable angle, the fast neutron of unit time incidence can be stopped.
Beneficial effects of the present invention:
Fast neutron screening plant provided by the invention can test the neutron streaming pulse period, to adjust automatically
It is had suffered the fast neutron screening plant and screening technique for filtering fast neutron, uses simple, efficient work.
Its working principle is that: scintillator component first is fully deployed, and forms an annulus, and first motor drives scintillator again
The rotation of component at the uniform velocity, at this moment neutron occurring source makes to be greater than a cycle to the incidence surface given-ioff neutron beam of scintillator component
The neutron beam of interior transmitting can directive scintillator component completely, can shine on such scintillator component, and pass through photodetector production
Raw electric signal, and the electric signal is sent to microprocessor, since fast neutron can be different from other neutrons, there is bigger energy
Amount, the photodetector for receiving fast neutron in this way can issue stronger signal, and microprocessor receives the electric signal, and carries out
Storage and processing, microprocessor calculate the pulse week of neutron streaming according to the strong and weak electric signal of the regularity variation of record
Phase.
Assuming that the time of one pulse period is 3 seconds, wherein there is 2 seconds time for the transmitting fast neutron stage, in this way I
Scintillator component can be revolved the time that turn around and be adjusted to 3 seconds, microprocessor turns herein by adjusting first motor
Scooter arrives, and the angle that scintillator component is unfolded is adjusted to 240 degree, the fast neutron injected in this way can be completely by scintillator
Component is stopped, this adjustment, controls the second motor by microprocessor to drive the rotation of the second skeleton to realize.
By using above-mentioned technical proposal, so that it may the fast neutron in the completely full automatic neutron beam to neutron source transmitting
It is filtered screening.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the principle of the present invention block diagram；
Fig. 4 is scintillator layers of the present invention, film, the structural schematic diagram for stopping adsorption layer；
Fig. 5 is the structural schematic diagram that scintillator component of the present invention is in rounding state；
Fig. 6 is the structural schematic diagram of the first skeleton of the invention；
Fig. 7 is the structural schematic diagram that scintillator component of the present invention is in unfolded state.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
With reference to Fig. 1-7, the present invention will be described as follows:
A kind of fast neutron screening plant, including shell 1, neutron occurring source 2, scintillator component 91 and first motor 3.
The shell 1 is closed shell 1, and neutron occurring source 2 is mounted on a upper lateral part in shell 1, and neutron occurring source 2 is corresponding
1 wall of side body is equipped with the neutron beam window 4 of outgoing neutron.The neutron beam of neutron occurring source transmitting is after screening from neutron beam window
It is projected in 4.
Scintillator component is vertically arranged at middle part in shell 1, and the axle center of scintillator component is located at 2 trunnion axis of neutron occurring source
Line lower part, and the corresponding scintillator component front position of neutron occurring source 2, it is another that first motor 3 is horizontally arranged at 1 inside of shell
The drive shaft of side, first motor 3 is connect with scintillator component center；Scintillator component is used to carry out screening and filtering to neutron beam to fall
Fast neutron.
The scintillator component is circle, and scintillator component includes scintillator layers 5, the first skeleton 6, intermediate skeleton 7, the
Two skeletons 8, the film 9 of circular ring shape, blocking adsorption layer 10, the second motor 11, scintillator component are folding fan used in similar life
Structure, it is deployable to collapse, after expansion be a complete circular ring shape.
First skeleton 6, intermediate skeleton 7, the second skeleton 8 are strip, shape similar to folding fan skeleton, the first skeleton 6,
Intermediate skeleton 7,8 three's shape and structure of the second skeleton are the same.One end of first skeleton 6 is equipped with axis hole, the axis hole and first motor
Driving axis connection, the first skeleton 6, intermediate skeleton 7, the second skeleton 8 are arranged successively in the drive shaft of first motor.
Radially be equipped on film 9 and disconnect slot 12, the first skeleton 6 and the second skeleton 8 respectively with the film 9 that disconnects 12 two sides of slot
End connection, intermediate skeleton 7 be equipped with it is multiple, intermediate skeleton 7 between the first skeleton 6 and the second skeleton 8 and respectively with film 9
Connection, intermediate skeleton 7 is at evenly distributed setting after expansion, and the first skeleton 6 is fixedly connected with drive shaft, intermediate skeleton 7 and second
Skeleton 8 and drive shaft, which are formed, to be rotatablely connected,
The front of film 9 is arranged in scintillator layers 5, and scintillator layers 5 can be shone by neutron exposure, and issue electric signal, resistance
The back side of film 9 is arranged in gear adsorption layer 10, and the absorption of adsorption layer 10 is stopped to isolate out neutron beam.
Second motor 11 is fixedly mounted on the driving shaft, and the second motor 11 can drive the second skeleton 8 to rotate；Connect in drive shaft
An axle sleeve 61 is connect, axle sleeve 61 is rotatably assorted by bearing 62 and the formation of drive shaft 63, axle sleeve 61 and the fixed company of the second skeleton 8
It connects, the motor shaft of the second motor 11 engages linkage with axle sleeve 61 by gear 64, is rotated by propeller shaft sleeve 61, to be unfolded
With the movement for collapsing scintillator component.
It further include photodetector and microprocessor 14, photodetector has several optical fiber 15 and several photodetectors
16, photodetector 16 is photomultiplier tube, and the corresponding scintillator layers 5 of optical fiber 15 are arranged, several photodetectors 16 correspond to
Optical fiber 15 is arranged, and photodetector 16 is connect with microprocessor 14, and microprocessor 14 can be according to several light detections received
The electric signal of element 16 and the pulse period information for calculating neutron streaming, microprocessor 14 is according to the pulse period information
To regulate and control the revolving speed of first motor 3 and the angle of the second motor 11 driving the second skeleton 8 rotation.
It wherein, further include the touch display 17 being connect with microprocessor 14.
Wherein, the top of the shell 1 is equipped with vacuum-pumping tube 18.
Wherein, the internal chamber wall of the shell 1 is equipped with boron carbide adsorption layer.
Wherein, the 1 two sidewalls bottom symmetrical of shell is disposed with correlation photoelectric sensor 19, photoelectric sensor 19
Horizontal axis is located at the fan-shaped notch position of turntable vertical direction disk.
Wherein, contracting band 20 is equipped between adjacent two intermediate skeletons 7, contracting band 20 receives the intermediate skeleton 7 of adjacent two
Hold together together.Contracting band plays the role of constraining intermediate skeleton, one end of intermediate skeleton and driving axis connection, intermediate skeleton it is another
Connection is brought by contracting in end, and the length of contracting band is less than the distance between the other end of the adjacent intermediate skeleton in unfolded state.
A kind of fast neutron screening technique, includes the following steps:
Step 1: being arranged an annular scintillator component in a closed shell 1, which can be as folding
Fan the same gathering and opening, scintillator component can be equipped with first motor 3 in its center rotating, shell 1, and first motor 3 is logical
Axis of overdriving drives the rotation of scintillator component, and scintillator component includes scintillator layers 5, the first skeleton 6, intermediate skeleton 7, the second bone
Frame 8, circular ring shape film 9, stop adsorption layer 10, the second motor 11, be radially equipped on film 9 and disconnect slot 12,6 He of the first skeleton
Second skeleton 8 connect with the end of film 9 for disconnecting 12 two sides of slot respectively, and intermediate skeleton 7 is equipped with multiple, and intermediate skeleton 7 is positioned at the
It is connect between one skeleton 6 and the second skeleton 8 and respectively with film 9, the first skeleton 6 is fixedly connected with drive shaft, intermediate skeleton 7 and
Two skeletons 8 are formed with drive shaft to be rotatablely connected, and the front of film 9 is arranged in scintillator layers 5, stops adsorption layer 10 that film 9 is arranged in
The back side, the second motor 11 are fixedly mounted on the driving shaft, and the second motor 11 can drive the second skeleton 8 to rotate, and make scintillator component
It is in the open state, it is rotated by the driving scintillator of first motor 3 at the uniform velocity；
Step 2, the plane of incidence given-ioff neutron of scintillator layers 5 of the neutron occurring source 2 into shell 1, makes at least one period
Neutron beam be mapped on scintillator；
Step 3, the luminous signal on scintillator pass to photomultiplier tube by optical fiber 15, and photomultiplier tube is again letter
It number is sent to microprocessor 14, microprocessor 14 records the number of signals and intensity received；
Step 4, microprocessor 14 handles the data information of number of signals and intensity in the unit time, and looks for
The variation of regularization therein out, to obtain the pulse period of neutron streaming；
Step 5, microprocessor 14 control first motor 3 and the work of the second motor 11, the first electricity according to the pulse period
Machine 3 is adjusted to suitable revolving speed, and with unit of fit pulse cycle time, the second motor 11 drives the rotation of the second skeleton 8, makes to dodge
Bright body component is deployed into suitable angle, can stop the fast neutron of unit time incidence.
Beneficial effects of the present invention:
Fast neutron screening plant provided by the invention can test the neutron streaming pulse period, to adjust automatically
It is had suffered the fast neutron screening plant and screening technique for filtering fast neutron, uses simple, efficient work.
Its working principle is that: scintillator component first is fully deployed, and forms an annulus, and first motor 3 drives flashing again
The rotation of body component at the uniform velocity, at this moment neutron occurring source 2 makes to be greater than a week to the incidence surface given-ioff neutron beam of scintillator component
The neutron beam emitted in phase can directive scintillator component completely, can shine on such scintillator component, and pass through photodetector
Electric signal is generated, and the electric signal is sent to microprocessor 14, since fast neutron can be different from other neutrons, is had bigger
Energy, the photodetector 16 for receiving fast neutron in this way can issue stronger signal, and microprocessor 14 receives the electric signal,
And stored and processed, microprocessor 14 calculates neutron streaming according to the strong and weak electric signal of the regularity variation of record
Pulse period.
Assuming that the time of one pulse period is 3 seconds, wherein there is 2 seconds time for the transmitting fast neutron stage, in this way I
Scintillator component can be revolved the time that turn around and be adjusted to 3 seconds, microprocessor 14 is herein by adjusting first motor 3
Revolving speed can reach, and the angle that scintillator component is unfolded is adjusted to 240 degree, the fast neutron injected in this way can be flashed completely
Body component is stopped, this adjustment, controls the second motor 11 by microprocessor 14 to drive the rotation of the second skeleton 8 to realize.
By using above-mentioned technical proposal, so that it may the fast neutron in the completely full automatic neutron beam to neutron source transmitting
It is filtered screening.
Above-described is only presently preferred embodiments of the present invention, is not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of fast neutron screening plant, it is characterised in that: including shell, neutron occurring source, scintillator component and first motor,
The shell is closed shell, and neutron occurring source is mounted on a upper lateral part in shell, sets on neutron occurring source respective side housing wall
There is neutron beam window, scintillator component is vertically arranged at middle part in shell, and it is horizontal that the axle center of scintillator component is located at neutron occurring source
Axis lower part, and neutron occurring source corresponds to scintillator component front position, first motor is horizontally mounted the other side inside housings,
The drive shaft of first motor is connect with scintillator component center；
The scintillator component is circle, scintillator component include scintillator layers, the first skeleton, intermediate skeleton, the second skeleton,
The film of circular ring shape stops adsorption layer, the second motor, is radially equipped on film and disconnects slot, the first skeleton and the second skeleton difference
Connect with the end of film for disconnecting slot two sides, intermedium be provided with it is multiple, intermediate skeleton be located at the first skeleton and the second skeleton it
Between and connect respectively with film, the first skeleton is fixedly connected with drive shaft, and intermediate skeleton and the second skeleton and drive shaft are formed and rotated
The front of film is arranged in connection, scintillator layers, stops adsorption layer that the back side of film is arranged in, and the second motor is fixedly mounted on drive shaft
On, the second motor can drive the second skeleton to rotate；
It further include photodetector and microprocessor, photodetector has several optical fiber and several photodetectors, optical fiber pair
Scintillator layers are answered to be arranged, several photodetectors are arranged corresponding to optical fiber, and photodetector is connect with microprocessor, micro process
Device can calculate the pulse period information of neutron streaming, micro process according to the electric signal of several photodetectors received
Device regulates and controls the revolving speed of first motor and the angle of second the second skeleton of motor driven rotation according to the pulse period information.
2. a kind of fast neutron screening plant according to claim 1, it is characterised in that: further include being connect with microprocessor
Touch display.
3. a kind of fast neutron screening plant according to claim 1, it is characterised in that: the top of the shell, which is equipped with, takes out
Vacuum tube.
4. a kind of fast neutron screening plant according to claim 1, it is characterised in that: set on the internal chamber wall of the shell
There is boron carbide adsorption layer.
5. a kind of fast neutron screening plant according to claim 1, it is characterised in that: the shell two sidewalls bottom pair
Title is disposed with correlation photoelectric sensor, and the horizontal axis of photoelectric sensor is located at the fan-shaped notch position of turntable vertical direction disk
It sets.
6. a kind of fast neutron screening plant according to claim 1, it is characterised in that: between the intermediate skeleton of adjacent two
Equipped with contracting band, contracting band collapses the intermediate skeleton of adjacent two together.
7. a kind of fast neutron screening technique, which comprises the steps of:
Step 1: an annular scintillator component is set in a closed shell, which can be as folding fan one
The gathering and opening of sample, scintillator component can be equipped with first motor in its center rotating, shell, and first motor passes through drive shaft
The rotation of scintillator component is driven, scintillator component includes scintillator layers, the first skeleton, intermediate skeleton, the second skeleton, circular ring shape
Film stops adsorption layer, the second motor, is radially equipped on film and disconnects slot, the first skeleton and the second skeleton respectively with disconnect slot
The end of the film of two sides connects, and intermedium is provided with multiple, and intermediate skeleton is positioned at the first skeleton and the second skeleton between and distinguishes
It is connect with film, the first skeleton is fixedly connected with drive shaft, and intermediate skeleton and the second skeleton and drive shaft, which are formed, to be rotatablely connected, flashing
The front of film is arranged in body layer, stops adsorption layer that the back side of film is arranged in, and the second motor is fixedly mounted on the driving shaft, the second electricity
Machine can drive the second skeleton to rotate, and keep scintillator component in the open state, be turned by the driving scintillator of first motor at the uniform velocity
It is dynamic；
Step 2, neutron occurring source make the neutron at least one period to the plane of incidence given-ioff neutron of the intracorporal scintillator layers of shell
In beam to scintillator；
Step 3, the luminous signal on scintillator pass to photomultiplier tube by optical fiber, and photomultiplier tube again sends signal
To microprocessor, number of signals and intensity that microprocessor records receive；
Step 4, microprocessor handles the data information of number of signals and intensity in the unit time, and finds out wherein
Regularization variation, to obtain the pulse period of neutron streaming；
Step 5, microprocessor control first motor and the work of the second motor according to the pulse period, and first motor is adjusted
To suitable revolving speed, with unit of fit pulse cycle time, scintillator component is unfolded in the rotation of second the second skeleton of motor driven
To suitable angle, the fast neutron of unit time incidence can be stopped.
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| CN201910442753.0A CN110136860B (en) | 2019-05-25 | 2019-05-25 | Fast neutron screening device and screening method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2773038C1 (en) * | 2021-11-24 | 2022-05-30 | Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Автоматики Им.Н.Л.Духова" (Фгуп "Внииа") | Pulse neutron generator |
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