CN112040627B - High-energy electron irradiation accelerator - Google Patents
High-energy electron irradiation accelerator Download PDFInfo
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- CN112040627B CN112040627B CN202010691498.6A CN202010691498A CN112040627B CN 112040627 B CN112040627 B CN 112040627B CN 202010691498 A CN202010691498 A CN 202010691498A CN 112040627 B CN112040627 B CN 112040627B
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- focusing coil
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H5/00—Direct voltage accelerators; Accelerators using single pulses
- H05H5/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H5/00—Direct voltage accelerators; Accelerators using single pulses
- H05H5/02—Details
- H05H5/03—Accelerating tubes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/04—Magnet systems, e.g. undulators, wigglers; Energisation thereof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/04—Magnet systems, e.g. undulators, wigglers; Energisation thereof
- H05H2007/043—Magnet systems, e.g. undulators, wigglers; Energisation thereof for beam focusing
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- High Energy & Nuclear Physics (AREA)
- Optics & Photonics (AREA)
- Particle Accelerators (AREA)
Abstract
The invention relates to a high-energy electron irradiation accelerator, which comprises an accelerating structure and a supporting structure; the acceleration structure comprises an electron gun, a focusing coil, an input waveguide system, a load waveguide system, a beam detection system and a scanning system; the electron gun, the focusing coil, the beam current detection system and the scanning system are sequentially connected and vertically arranged on the accelerating structure so as to be convenient to assemble; the input waveguide system and the load waveguide system are respectively connected with the inlet and the outlet of the focusing coil. The invention has the following beneficial effects: 1. the acceleration structure can ensure the installation coaxiality by vertically installing the acceleration structure on the supporting structure, so the acceleration structure is quick to install and convenient to install and debug. 2. The design of top backup pad center has big round hole, and the hoist and mount of structure accessory is accelerated when being convenient for install perpendicularly. 3. The titanium pump supporting plate is adjustable, the position of the titanium pump can be finely adjusted according to actual installation conditions, the difficulty of the titanium pump installation process is effectively reduced, the precision requirement of the supporting plate installation position is reduced, and the installation efficiency is improved.
Description
Technical Field
The invention belongs to the field of electron irradiation accelerators, and particularly relates to a high-energy electron irradiation accelerator.
Background
The electron irradiation accelerator has good benefits in the aspects of radiation disinfection and sterilization, food preservation, material modification and the like. In recent years, high-energy electron irradiation accelerators are developed rapidly, the electron linear accelerators have a series of advantages of strong processing capacity, low construction cost and operation cost, good irradiation process property and product quality and the like, and particularly the electron irradiation accelerators have the advantages of high production efficiency, no damage to irradiated objects, no residue, no generation of peculiar smell and the like in the field of irradiation sterilization.
The existing accelerator has the condition of inconvenient assembly caused by difficult guarantee of coaxiality.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high-energy electron irradiation accelerator, and the technical scheme can ensure the coaxiality of assembly and is convenient to install and debug.
The technical scheme of the invention is as follows:
a high-energy electron irradiation accelerator comprises an accelerating structure and a supporting structure; the acceleration structure comprises an electron gun, a focusing coil, an input waveguide system, a load waveguide system, a beam detection system and a scanning system; the electron gun, the focusing coil, the beam current detection system and the scanning system are sequentially connected and vertically arranged on the accelerating structure so as to be convenient to assemble; the input waveguide system and the load waveguide system are respectively connected with the inlet and the outlet of the focusing coil.
Furthermore, in the high-energy electron irradiation accelerator, the support structure comprises a top support plate, a focusing coil support plate, a main body substrate, a beam detection support plate and a scanning magnet support plate which are sequentially arranged from top to bottom; the electron gun, the focusing coil, the beam current detection system and the scanning magnet of the scanning system are respectively arranged on the top supporting plate, the focusing coil supporting plate, the beam current detection supporting plate and the scanning magnet supporting plate; the top supporting plate, the focusing coil supporting plate, the beam detection supporting plate and the scanning magnet supporting plate are all arranged on the main body substrate as an installation reference to guarantee installation coaxiality.
Further, in the high-energy electron irradiation accelerator, the top support plate is provided with a mounting hole for facilitating mounting of the accelerating structural component after the accelerating structural component passes through the mounting hole.
Furthermore, in the high-energy electron irradiation accelerator, a height-adjustable scanning box suspension rod is further connected below the scanning magnet support plate, and the scanning box suspension rod is used for installing a scanning box of the scanning system.
Further, in the high-energy electron irradiation accelerator, the top support plate and the focusing coil support plate are mounted on the main body substrate through the main body column.
Further, in the high-energy electron irradiation accelerator, a supporting beam is arranged between adjacent main body columns.
Further, in the high-energy electron irradiation accelerator, the support structure further includes an input waveguide system support frame and an electron gun transformer support frame mounted on the main substrate.
Further, in the high-energy electron irradiation accelerator, the support structure further comprises a load waveguide system support frame, and the load waveguide system support frame is a double-layer support structure and respectively supports the curved waveguide and the waveguide window.
Further, in the high-energy electron irradiation accelerator, the support structure is further provided with a titanium pump support plate; the titanium pump supporting plates are height-adjustable supporting plates.
The invention has the following beneficial effects:
1. the acceleration structure can ensure the installation coaxiality by vertically installing the acceleration structure on the supporting structure, so the acceleration structure is quick to install and convenient to install and debug.
2. The design of top backup pad center has big round hole, and the hoist and mount of structure accessory is accelerated when being convenient for install perpendicularly.
3. The titanium pump backup pad adopts adjustable design, can finely tune the titanium pump position according to actual installation condition, effectively reduces the titanium pump mounting process degree of difficulty, reduces the required precision of backup pad mounted position, improves the installation effectiveness.
4. The device main body substrate is used as an installation reference, the reference is single, the coaxiality of beam pipelines installed on the accelerator can be effectively improved, and the installation efficiency is improved.
5. The load waveguide system support frame adopts a double-layer support structure design, so that the waveguide window can be prevented from being damaged under the action of external force.
6. The scanning box is fixedly installed in a hanging mode, the upper position and the lower position of the scanning box can be finely adjusted according to the error of the actual installation position, the position precision requirement of the installation of the scanning box is reduced, and the installation efficiency of the scanning box is improved.
Drawings
FIG. 1 is a schematic structural diagram of a high-energy electron irradiation accelerator according to the present invention.
Fig. 2 is a schematic structural diagram of an acceleration structure.
Fig. 3 is a schematic structural view of the support structure.
In the above drawings, 1, an electron gun; 2. a first focusing coil; 3. a second focusing coil; 4. a third focusing coil; 5. an accelerator body support stand; 6. an outlet titanium pump; 8. a transformer; 9. an input waveguide system; 10. a klystron; 11. an accelerating tube; 12. a klystron transformer; 13. a klystron transformer support; 14. a loaded waveguide system; 16. a scanning magnet; 17. a scanning box titanium pump; 18. an accelerating tube adapter assembly; 19. a gate valve; 20. a four-way assembly; 21. a drift tube; 22. a bellows; 23. a beam detection device; 25. a scanning box; 26. an inlet titanium pump; 501. a top support plate; 502. a main body column; 503. a focusing coil support plate; 504. a first support beam; 505. a main body substrate; 506. a support base; 507. a second titanium pump support plate; 508. a scanning magnet support plate; 509. a scan box boom; 510. a transformer support; 511. an inlet titanium pump support plate; 512. inputting a waveguide system support frame; 513. a second support beam; 514. a load waveguide system support frame; 516. a wire harness upright post; 517. a beam detection support plate; 518. scanning box titanium pump backup pad.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in fig. 1, the present invention provides a high energy electron irradiation accelerator, comprising an accelerating structure and a supporting structure; as shown in fig. 2, the accelerating structure includes an electron gun 1, a focusing coil, an input waveguide system 9, a load waveguide system 14, a beam detecting system and a scanning system; the electron gun 1, the focusing coil, the beam current detection system and the scanning system are sequentially connected and vertically arranged on the accelerating structure so as to be convenient to assemble; the input waveguide system 9 and the load waveguide system 14 are connected to the inlet and outlet of the focussing coil, respectively.
In fig. 2, an electron gun 1 is connected to a transformer 8 (mounted on a transformer holder 510), an accelerating tube 11 passes through three focusing coils, the upper end is connected to the electron gun 1, and the lower end is connected to a beam current detection system. The beam detection system comprises an accelerating tube switching assembly 18, a gate valve 19, a four-way assembly 20, a drift tube 21, a corrugated tube 22 and a beam detection device 23; the beam in the accelerating tube 11 sequentially passes through the accelerating tube adapter assembly 18, the gate valve 19, the four-way assembly 20, the drift tube 21 and the corrugated tube 22 and then enters the beam detection device 23; an outlet titanium pump 6 is connected to the four-way component 20 to maintain the vacuum degree.
The scanning system includes a scanning box 25 and a scanning magnet 16; the beam from the beam detecting device 23 passes through the magnetic field of the scanning magnet 16 and enters the scanning box 25 to be scanned. The scanning box 25 is provided with a scanning box titanium pump 17 capable of maintaining a vacuum degree.
The electron gun 1, the accelerating tube 11, the accelerating tube adapter assembly 18, the gate valve 19, the four-way assembly 20, the drift tube 21, the corrugated tube 22, the beam current detection device 23 and the scanning box 25 are connected through vacuum flanges, and the coaxiality of the connection is ensured.
An input waveguide system 9 and a load waveguide system 14 are respectively connected with the inlet and the outlet of the focusing coil; the input waveguide system 9 is connected with a governor tube transformer and an inlet titanium pump 26. A klystron transformer 12 is arranged on a klystron transformer bracket 13, a klystron 10 is arranged on an oil tank base of the klystron transformer 12, the output power of the klystron is fed into an accelerating tube 11 through an input waveguide system 9, and the outlet of the accelerating tube is connected with a load waveguide system 14 to absorb the power.
As shown in fig. 3, the supporting structure comprises a top supporting plate 501, a focusing coil supporting plate 503, a main body substrate 505, a beam detecting supporting plate 517 and a scanning magnet supporting plate 508 which are arranged from top to bottom in sequence; the electron gun 1, the focusing coil, the beam current detection system and the scanning magnet 16 of the scanning system are respectively arranged on the top support plate 501, the focusing coil support plate 503, the beam current detection support plate 517 and the scanning magnet support plate 508; the top support plate 501, the focusing coil support plate 503, the beam detection support plate 517 and the scanning magnet support plate 508 are all arranged on the main body substrate 505 as an installation reference to ensure the installation coaxiality.
In this embodiment, the top support plate 501 is provided with a mounting hole for facilitating installation after the acceleration structural component passes through, so that the accelerator body fitting can be hoisted when being vertically installed. Also attached below the scanning magnet support plate 508 is a height adjustable cassette boom 509, the cassette boom 509 being used to mount the scanning cassette 25 of the scanning system. The vertical hanging type fixed installation can be carried out according to the actual installation position error, the position precision requirement of the installation of the scanning box 25 is reduced, and the installation efficiency is improved. A top support plate 501 and a focusing coil support plate 503 are mounted on the body base plate 505 by body posts 502. Support beams (a first support beam 504 and a second support beam 513) are arranged between adjacent body columns 502. The support structure 5 further includes an input waveguide system support 512 and an electron gun transformer support mounted on the body substrate 505. The supporting structure 5 further includes a supporting frame 514 for the loaded waveguide system, and the supporting frame 514 for the loaded waveguide system is a double-layer supporting structure, and supports the curved waveguide and the waveguide window respectively, so as to prevent the waveguide window from being damaged by external force. The supporting structure 5 is also provided with a titanium pump supporting plate (an inlet titanium pump supporting plate 511, a second titanium pump supporting plate 507 and a scanning box titanium pump supporting plate 518); the titanium pump supporting plates are height-adjustable supporting plates, the position of the titanium pump can be finely adjusted according to actual installation conditions, the difficulty of the titanium pump installation process is effectively reduced, the precision requirement of the installation position of the supporting plates is lowered, and the installation efficiency is improved.
In a specific embodiment of the present invention, four main body columns 502 are mounted on a main body substrate 505, the tops of the four columns are fixedly connected by a top support plate 501, the center of the top support plate 501 is designed with a large circular hole for hoisting a first focusing coil 2, a second focusing coil 3, a third focusing coil 4 and an accelerator tube, and the focusing coils are fixedly mounted on the focusing coil support plate and fixed by bolts. The main body substrate 505 is fixedly mounted on the support base 506 through bolts, the beam line upright 516 is mounted on the other surface of the main body substrate 505, and the beam detection device support plate and the scanning magnet support plate 508 are sequentially mounted on the beam line upright 516. The scanning magnet support plate 508 is provided with a scanning box suspension rod 509, the scanning box suspension rod 509 is used for fixedly mounting the scanning box 25, and the scanning box titanium pump support plate 518 is fixed on the scanning magnet support plate 508 through four hexagonal rods.
The main body substrate 505 is used as an installation reference, the reference is single, the coaxiality of beam pipelines installed on the accelerator can be effectively improved, and the installation efficiency is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims (7)
1. A high-energy electron irradiation accelerator is characterized by comprising an accelerating structure and a supporting structure; the acceleration structure comprises an electron gun, a focusing coil, an input waveguide system, a load waveguide system, a beam detection system and a scanning system; the electron gun, the focusing coil, the beam current detection system and the scanning system are sequentially connected and vertically arranged on the accelerating structure so as to be convenient to assemble; the input waveguide system and the load waveguide system are respectively connected with the inlet and the outlet of the focusing coil; the supporting structure comprises a top supporting plate, a focusing coil supporting plate, a main body substrate, a beam detection supporting plate and a scanning magnet supporting plate which are sequentially arranged from top to bottom; the electron gun, the focusing coil, the beam current detection system and the scanning magnet of the scanning system are respectively arranged on the top supporting plate, the focusing coil supporting plate, the beam current detection supporting plate and the scanning magnet supporting plate; top supporting plate and focusing coil backup pad pass through the main part column mouting on the main part base plate, the bunch stand is installed to the another side of main part base plate, install beam current detection device backup pad and scanning magnet backup pad on the bunch stand in proper order, all with in top supporting plate, focusing coil backup pad, beam current detection backup pad and the scanning magnet backup pad the main part base plate sets up in order to ensure installation axiality for the installation benchmark.
2. The accelerator according to claim 1, wherein the top support plate is provided with a mounting hole for mounting the focusing coil to the focusing coil support plate after passing through the hole.
3. The accelerator of claim 1, wherein a height-adjustable scan box suspension rod is further connected below the scan magnet support plate, and the scan box suspension rod is used for mounting a scan box of the scanning system.
4. The accelerator according to claim 3, wherein a support beam is disposed between adjacent body pillars.
5. The accelerator of claim 1, wherein the support structure further comprises an input waveguide system support bracket and an electron gun transformer support bracket mounted on the body substrate.
6. The accelerator of claim 1, wherein the support structure further comprises a loaded waveguide system support frame, the loaded waveguide system support frame is a double-layer support structure supporting the waveguide bend and the waveguide window, respectively.
7. The accelerator according to any one of claims 1 to 6, wherein a titanium pump support plate is further provided on the support structure; the titanium pump supporting plates are height-adjustable supporting plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010691498.6A CN112040627B (en) | 2020-07-17 | 2020-07-17 | High-energy electron irradiation accelerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010691498.6A CN112040627B (en) | 2020-07-17 | 2020-07-17 | High-energy electron irradiation accelerator |
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| CN112040627A CN112040627A (en) | 2020-12-04 |
| CN112040627B true CN112040627B (en) | 2021-09-28 |
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| CN114126185A (en) * | 2021-11-26 | 2022-03-01 | 中山大学 | Strong-current electron linear accelerator for nuclide preparation |
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