CN2870087Y - Irradiation device that can absorb the remaining electron beam - Google Patents
Irradiation device that can absorb the remaining electron beam Download PDFInfo
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- CN2870087Y CN2870087Y CN 200520136583 CN200520136583U CN2870087Y CN 2870087 Y CN2870087 Y CN 2870087Y CN 200520136583 CN200520136583 CN 200520136583 CN 200520136583 U CN200520136583 U CN 200520136583U CN 2870087 Y CN2870087 Y CN 2870087Y
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- electron beam
- electron
- linear accelerator
- scanning frame
- irradiation device
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Abstract
本实用新型公开了一种可吸收剩余电子束的辐照装置，属于辐射加工技术领域。它包括电子直线加速器，与电子直线加速器连接的电子束漂移扫描架，置于电子束漂移扫描架下方、可放置受辐照物的机械传送机构。其结构特点是，在电子束漂移扫描架的正下方、机械传送机构的底部置有电子束吸收器。电子束吸收器与电子直线加速器之间通过导线连接形成电子学回路，使热量传导。使用本实用新型，可降低电子束辐照装置中防护层的厚度，节省成本，减小体积与重量，防止电荷与热量的局部累积，实现电子束辐照装置的自屏蔽和小型化，可进一步扩大电子束辐照装置的应用范围。
The utility model discloses an irradiation device capable of absorbing surplus electron beams, which belongs to the technical field of radiation processing. It includes an electron linear accelerator, an electron beam drift scanning frame connected with the electron linear accelerator, and a mechanical transmission mechanism placed under the electron beam drift scanning frame and capable of placing irradiated objects. Its structural feature is that an electron beam absorber is placed directly under the electron beam drifting scanning frame and at the bottom of the mechanical transmission mechanism. The electron beam absorber and the electron linear accelerator are connected by wires to form an electronic circuit to conduct heat. The utility model can reduce the thickness of the protective layer in the electron beam irradiation device, save cost, reduce the volume and weight, prevent the local accumulation of charge and heat, realize the self-shielding and miniaturization of the electron beam irradiation device, and further Expand the application range of the electron beam irradiation device.
Description
Technical field
The utility model relates to the radiation processing technology field, particularly is the irradiation devices of radiation source with the electron-beam accelerator.
Background technology
The electron beam irradiation treatment technology is ionizing power and a bremsstrahlung effect of utilizing electron beam, makes to be subjected to produce some biology and physical influence according to article, thereby carries out disinfection and deinsectization or change the treatment technology of article physical characteristics.In the prior art, generally use the electron beam that accelerator produces certain energy, and drawn by the titanium window, these accelerators comprise: row ripple or wave ekctrinl inear accelerator, high direct voltage type accelerator, dynamitron etc.By irradiated material by bundle down mechanical transmission device irradiation is finished in the article electron beam zone by being drawn by the titanium window evenly.For the homogeneity that guarantees that irradiation dose distributes, electron beam can not be absorbed by the irradiation thing all.The energy of electronic beam current is mainly at 2MeV～20MeV, and to hundreds of kW, the energy of excess electron bundle and power are also quite high from 1kW for output power range.These excess electrons Shu Ruguo beats on fenders such as iron, copper parts or lead, concrete all will produce a large amount of X ray, bring very large radiation protection difficulty.In electron beam irradiation, mainly adopt the absorbing material of the engineering plastics of uncovered water tank or carbon dope at present as the excess electron bundle.But uncovered water tank is unsuitable for being used for the mobile model irradiation apparatus, and carbon dope engineering plastics electrical and thermal conductivity performance is relatively poor, the electric charge and the accumulation of heat of part are very big in short time in powerful electron beam irradiation equipment, easily form the high hot-zone of high pressure, produce very big destruction.
Summary of the invention
In order to overcome above-mentioned problems of the prior art, the purpose of this utility model provides a kind of irradiation devices that absorb the excess electron bundle.It can not only reduce the yield of X ray in the electron beam irradiation effectively, and electrical and thermal conductivity performance is fine, can prevent the accumulation at regional area of electric charge and heat, applicable to fixed and mobile electron beam irradiation equipment.
In order to reach above-mentioned goal of the invention, the technical solution of the utility model realizes with following scheme:
A kind of irradiation devices that absorb the excess electron bundle, it comprises electron linear accelerator, the electron beam drift scanning frame that is connected with electron linear accelerator places electron beam drift scanning frame below, can place the mechanical transmission mechanism that is subjected to the irradiation thing.Its design feature is, under the described electron beam drift scanning frame, the bottom of mechanical transmission mechanism is equipped with the electron beam absorber.Connect and compose the electronics loop by lead between electron beam absorber and the electron linear accelerator.
According to above-mentioned technical scheme, described electron beam absorber is the absorption seat of the band heat radiation fin made by alumina based material and places and absorb the other blower fan of seat and constitute.
According to above-mentioned technical scheme, described electron beam absorber is that the water inlet that can be connected with outside water-cooling system by the band that alumina based material is made and the seal case of water delivering orifice constitute.
The utility model is placed electronic absorber owing to adopted above-mentioned structure in the bottom of mechanical transmission mechanism, and electronic absorber is with the absorbing material of the good low atomic number material of electrical and thermal conductivity performance as the excess electron bundle.This material can be metallic aluminium, almag etc.It can reduce the yield of X ray effectively, has the favorable conductive heat conductivility simultaneously, can prevent the part accumulative total of electric charge and heat.The utility model can make the thickness of electron beam irradiation radiation protection layer reduce, and saves cost, helps the small volume and less weightization of system.Be applicable to fixed and mobile electron beam irradiation equipment.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the present utility model;
Fig. 2 is an another kind of embodiment structural representation of the present utility model.
Below in conjunction with the drawings and the specific embodiments the utility model is further described.
Embodiment
Referring to Fig. 1, the utility model irradiation devices comprise electron linear accelerator 1, and the electron beam drift scanning frame 2 that is connected with electron linear accelerator 1 places electron beam drift scanning frame 2 belows, can place the mechanical transmission mechanism 4 that is subjected to irradiation thing 3.Under electron beam drift scanning frame 2, the bottom of mechanical transmission mechanism 4 is equipped with electron beam absorber 5.Connect and compose the electronics loop by lead between electron beam absorber 5 and the electron linear accelerator 1.Electron beam absorber 5 is absorption seats 9 of the band heat radiation fin made by alumina based material and places and absorb seat 9 other blower fans 8 and constitute.The wind that produces by blower fan 8 dispels the heat to absorbing seat 9, can get rid of ozone simultaneously.The utility model both can effectively reduce the X ray yield, can prevent that again the excess electron bundle produces the high thermal region of high pressure in the high-power accelerator in the part, utilized the absorption seat 9 of 8 pairs of excess electron bundles of blower fan of getting rid of ozone to cool off, and was simple in structure, practical.
Referring to Fig. 2, the utility model irradiation devices comprise electron linear accelerator 1, and the electron beam drift scanning frame 2 that is connected with electron linear accelerator 1 places electron beam drift scanning frame 2 belows, can place the mechanical transmission mechanism 4 that is subjected to irradiation thing 3.Under electron beam drift scanning frame 2, the bottom of mechanical transmission mechanism 4 is equipped with electron beam absorber 5.Connect and compose the electronics loop by lead between electron beam absorber 5 and the electron linear accelerator 1.Electron beam absorber 5 adopts alumina based material to make the seal case structure, and casing is provided with water inlet 6 and water delivering orifice 7, by being connected with outside water-cooling system electron beam absorber 5 is cooled off.The utility model both can effectively reduce the X ray yield, can prevent that again the excess electron bundle produces the high thermal region of high pressure in the high-power accelerator in the part.
Claims (3)
1, a kind of irradiation devices that absorb the excess electron bundle, it comprises electron linear accelerator (1), the electron beam drift scanning frame (2) that is connected with electron linear accelerator (1), place electron beam drift scanning frame (2) below, can place the mechanical transmission mechanism (4) that is subjected to irradiation thing (3), it is characterized in that, under the described electron beam drift scanning frame (2), the bottom of mechanical transmission mechanism (4) is equipped with electron beam absorber (5), connects and composes the electronics loop by lead between electron beam absorber (5) and the electron linear accelerator (1).
According to the described irradiation devices that absorb the excess electron bundle of claim 1, it is characterized in that 2, described electron beam absorber (5) is the absorption seat (9) of the band heat radiation fin made by alumina based material and places and absorb an other blower fan (8) formation of seat (9).
3, according to the described irradiation devices that absorb the excess electron bundle of claim 1, it is characterized in that described electron beam absorber (5) is that the water inlet (6) that can be connected with outside water-cooling system by the band that alumina based material is made and the seal case of water delivering orifice (7) constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520136583 CN2870087Y (en) | 2005-12-31 | 2005-12-31 | Irradiation device that can absorb the remaining electron beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520136583 CN2870087Y (en) | 2005-12-31 | 2005-12-31 | Irradiation device that can absorb the remaining electron beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2870087Y true CN2870087Y (en) | 2007-02-14 |
Family
ID=37725025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520136583 Expired - Lifetime CN2870087Y (en) | 2005-12-31 | 2005-12-31 | Irradiation device that can absorb the remaining electron beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2870087Y (en) |
-
2005
- 2005-12-31 CN CN 200520136583 patent/CN2870087Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 100083 A, block 2907, Tongfang science and Technology Plaza, Beijing Co-patentee after: Nuctech Company Limited Patentee after: Tsinghua University Address before: 100083 A, block 2907, Tongfang science and Technology Plaza, Beijing Co-patentee before: Qinghua Tongfang Weishi Tech Co.,Ltd. Patentee before: Tsinghua University |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090812 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |