CN116261251A - Electronic linear accelerator for light X-band nondestructive testing - Google Patents
Electronic linear accelerator for light X-band nondestructive testing Download PDFInfo
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- CN116261251A CN116261251A CN202310307738.1A CN202310307738A CN116261251A CN 116261251 A CN116261251 A CN 116261251A CN 202310307738 A CN202310307738 A CN 202310307738A CN 116261251 A CN116261251 A CN 116261251A
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- magnetron
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- accelerating tube
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- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000001133 acceleration Effects 0.000 claims abstract description 13
- 238000010894 electron beam technology Methods 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 5
- 230000001066 destructive effect Effects 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 230000005672 electromagnetic field Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005264 electron capture Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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
- H05H9/00—Linear accelerators
-
- 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
- H05H7/02—Circuits or systems for supplying or feeding radio-frequency energy
-
- 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
- H05H7/22—Details of linear accelerators, e.g. drift tubes
-
- 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
- H05H7/02—Circuits or systems for supplying or feeding radio-frequency energy
- H05H2007/022—Pulsed systems
-
- 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
- H05H7/02—Circuits or systems for supplying or feeding radio-frequency energy
- H05H2007/027—Microwave systems
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Particle Accelerators (AREA)
Abstract
The invention provides a lightweight X-band electron linear accelerator for nondestructive testing, and belongs to the technical field of accelerators. The invention comprises the following steps: an irradiation head in which a magnetron, a circulator and an accelerating tube are arranged; the solid-state modulator is used for providing pulse high voltage for the magnetron to control the microwave power output by the magnetron; the water cooling unit is used for radiating heat for the irradiation head and the solid modulator; an electron gun connected with the accelerating tube for emitting electron beams into the accelerating tube; the electron gun power supply is electrically connected with the electron gun and used for supplying power to the electron gun; the microwave power of the magnetron is 9.3GHz microwave of an X wave band, and the magnetron, the circulator and the accelerating tube are connected through the waveguide in sequence. The invention realizes electron acceleration by applying the ultra-high frequency electromagnetic field (9.3 GHz (X wave band)), greatly reduces the size and weight of equipment, and reduces the weight to one tenth compared with the traditional accelerator device.
Description
Technical Field
The invention relates to the technical field of accelerators, in particular to a lightweight electron linear accelerator for X-band nondestructive testing.
Background
The light-weight electronic linear accelerator for X-band nondestructive testing is a high-energy X-ray source and is used for the nondestructive testing of cracks, slag inclusion, incomplete penetration, looseness, air holes, debonding and rays of nonmetallic parts of large-thickness cast-forging weldments, and can be applied to the field detection of oversized, overweight, inconvenient disassembly and inconvenient transportation of the workpieces.
At present, most of electronic linear accelerators adopt S-band accelerating tubes, related microwave devices such as magnetrons, four-terminal circulators, waveguides, phase shifters and the like are mature in technology and reasonable in price, and are put into large-area use in the market. Taking the existing S-band 2MeV accelerator for nondestructive detection as an example, the focal point size of the accelerator is about 1.5 mm-2 mm, and the spatial resolution is about
1.5-3 LP/mm, which cannot meet the detection of high-precision workpieces. The accelerator is heavy and large in size. In many application scenarios, such as industrial CT and vehicle-mounted security inspection equipment, the accelerator is required to have a light weight and a small structure, and the accelerator is accelerated
The device cannot meet more market demands.
Disclosure of Invention
In view of the above, in order to solve the technical problem that the electron linear accelerator for nondestructive testing generally has a large size in the prior art, the invention provides a lightweight electron linear accelerator for nondestructive testing in an X-band, which realizes electron acceleration by applying an ultrahigh frequency electromagnetic field (9.3 GHz (X-band)), greatly reduces the size and weight of equipment, and reduces the weight to one tenth compared with the traditional accelerator device.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an electronic linear accelerator for lightweight X-band non-destructive testing, comprising:
an irradiation head in which a magnetron, a circulator and an accelerating tube are arranged;
a solid state modulator for providing pulse high voltage for the magnetron to control the microwave power output by the magnetron;
the water cooling unit is used for radiating heat for the irradiation head and the solid-state modulator;
an electron gun connected to the acceleration tube for emitting an electron beam into the acceleration tube;
an electron gun power supply electrically connected with the electron gun for supplying power to the electron gun;
the control console is used for controlling the irradiation head, the solid-state modulator, the water cooling unit, the electron gun and the electron gun power supply;
the magnetron is used as a microwave source and is used for receiving high-voltage pulses to generate microwaves and transmitting the microwaves to the accelerating tube;
the microwave power of the magnetron is X-band 9.3GHz microwave, and the magnetron, the circulator and the accelerating tube are connected through waveguides in sequence.
Preferably, the magnetron and the accelerating tube are controlled by an automatic frequency.
Preferably, the water cooling unit is an integrated lightweight cooling unit.
Preferably, the accelerating tube is of an all-metal closed structure, and the high vacuum degree is maintained by a titanium pump.
Preferably, the console is operated and maintained remotely by means of a remote control.
Preferably, the operation terminal interface of the console is one of a touch screen, a computer and a tablet personal computer.
Preferably, a high-density material is used as the radiation shielding material around the accelerating tube.
Preferably, the water cooling unit uses cooling water as a cooling medium.
Compared with the prior art, the invention has the following beneficial effects:
the light-weight electron linear accelerator for X-band nondestructive detection provided by the invention realizes electron acceleration by applying an ultrahigh frequency electromagnetic field (9.3 GHz), greatly reduces the size and weight of equipment, and reduces the weight to one tenth compared with the traditional accelerator device. The whole device can realize transportation transition and field detection by only not more than 2 people without a booster machine. The whole device adopts a traditional 380V three-phase alternating current power supply, and the total power is not more than 20kW. The device can realize remote operation of more than 100 meters and the like so as to ensure personal safety of operators.
The light-weight electronic linear accelerator for X-band nondestructive testing can be moved to occasions needing ray detection only by manpower without depending on a mechanical booster, and is particularly suitable for the situation that the size of a workpiece is too large and the weight of the workpiece is too large, and conventional vehicles cannot transport; or the device is limited by special conditions such as manufacturing process conditions or confidentiality, is inconvenient or can not transport the workpiece to be detected, and can be applied to the fields such as boiler pressure vessels, petrochemical engineering, nuclear power vessels, military industry and the like.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
in the figure, 1, an irradiation head, 11, a magnetron, 12, a circulator, 13, an accelerating tube, 14, a waveguide, 2, a solid-state modulator, 3, a water cooling unit and 4, a console.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the present invention provides a lightweight X-band non-destructive inspection electron linear accelerator comprising:
an irradiation head 1 in which a magnetron 11, a circulator 12, and an acceleration tube 13 are disposed;
a solid state modulator 2 for providing a pulsed high voltage to the magnetron 11 to control the microwave power output by the magnetron;
a water cooling unit 3 for radiating heat for the irradiation head 1 and the solid-state modulator 2;
an electron gun (not shown) connected to the acceleration tube for emitting an electron beam into the acceleration tube, thereby accelerating and focusing the electron beam by the acceleration tube 13;
an electron gun power supply (not shown) electrically connected to the electron gun for supplying power to the electron gun;
a control console 4 for controlling the irradiation head 1, the solid state modulator 2, the water cooling unit 3, the electron gun and the electron gun power supply;
the magnetron 11 serves as a microwave source for receiving a high voltage pulse to generate microwaves and transmitting the microwaves to the accelerating tube 13;
the microwave power of the magnetron 11 is X-band 9.3GHz microwave, and the magnetron 11, the circulator 12 and the accelerating tube 13 are connected through waveguides in sequence.
In the present invention, the magnetron 11 and the accelerating tube 13 are controlled by an automatic frequency.
In the present invention, the water cooling unit 3 is an integrated light-weight cooling unit.
In the present invention, the accelerating tube 13 is of an all-metal closed structure, and a high vacuum is maintained by a titanium pump.
In the present invention, the console 4 is operated and maintained remotely by a remote control method.
In the invention, the operation terminal interface of the console 4 is one of a touch screen, a computer and a tablet personal computer.
In the present invention, a high-density material is used as a radiation shielding material around the accelerating tube 13.
In the present invention, the water cooling unit 3 uses cooling water as a cooling medium.
In the present invention, the accelerating tube 13 preferably has a plurality of accelerating cavities, and when the electron beam passes through the accelerating cavities, acceleration and focusing can be obtained, so as to realize acceleration of the electron, since the microwave power in the present invention is the X-band 9.3GHz microwave, the accelerating tube 13 is correspondingly an X-band accelerating tube, and compared with the existing S-band accelerating tube, the microwave frequency of the X-band is higher, so that under the condition of reaching the same electron beam energy, the volume of the X-band accelerating tube is smaller, correspondingly, the shielding volume around the accelerating tube 13 is smaller, and the weight of the accelerating tube 13 is also reduced. In addition, since the electron capture rate of the accelerating cavity of the X-band accelerating tube is lower than that of the S-band accelerating tube, the X-band accelerating tube needs to be provided with more accelerating cavities to achieve the same electron beam energy, and the electron beam can be accelerated every time it passes through one cavity, and focusing is obtained. Because the number of the accelerating cavities of the X-band accelerating tube is more than that of the S-band accelerating tube, the design flexibility of the X-band accelerating tube in the electron beam focusing design is obviously superior to that of the S-band accelerating tube, and compared with the X-band accelerating tube, the X-band accelerating tube is easier to realize a small focus.
The accelerating tube 13 adopts an X-band accelerating tube, so that a small focus can be realized more easily, the image resolution is higher, and the volume of the X-band accelerating tube is smaller than that of the S-band accelerating tube, so that the volume and the weight of the accelerating tube 13 and the shielding thereof can be reduced correspondingly, and meanwhile, the accelerating tube 13, the magnetron 11 and the electron gun power supply are tightly arranged along the front-back direction of the accelerator, so that the length of the accelerator is determined, and the overall dimension of the accelerator can be made to be as small as possible. Through the design, the X-band electronic linear accelerator with the focal point size not larger than 0.5mm, light weight, compact structure and generated electron energy exceeding 1.95MeV can be provided, and the nondestructive testing requirement of large-scale high-precision workpieces can be met under a scene with limited places.
In the present invention, the circulator 12 is used to isolate microwave power fed back to the magnetron 11. The waveguide connects the magnetron 11 and the accelerating tube 13 for transferring microwave power generated by the magnetron 11 to the accelerating tube 13. The circulator 12 is arranged between the magnetron 11 and the accelerating tube 13, the circulator 12 is connected with the waveguide to form a microwave power transmission channel, and under the blocking effect of the circulator 12, the microwave power can be prevented from being fed back to the magnetron 11.
The above is only a preferred embodiment of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (8)
1. An electronic linear accelerator for lightweight X-band nondestructive testing, comprising:
an irradiation head in which a magnetron, a circulator and an accelerating tube are arranged;
a solid state modulator for providing pulse high voltage for the magnetron to control the microwave power output by the magnetron;
the water cooling unit is used for radiating heat for the irradiation head and the solid-state modulator;
an electron gun connected to the acceleration tube for emitting an electron beam into the acceleration tube;
an electron gun power supply electrically connected with the electron gun for supplying power to the electron gun;
the control console is used for controlling the irradiation head, the solid-state modulator, the water cooling unit, the electron gun and the electron gun power supply;
the magnetron is used as a microwave source and is used for receiving high-voltage pulses to generate microwaves and transmitting the microwaves to the accelerating tube;
the microwave power of the magnetron is X-band 9.3GHz microwave, and the magnetron, the circulator and the accelerating tube are connected through waveguides in sequence.
2. The lightweight X-band non-destructive inspection electron linear accelerator according to claim 1, wherein the magnetron and the accelerating tube are controlled by an automatic frequency.
3. The lightweight X-band non-destructive inspection electronic linear accelerator according to claim 1, wherein the water chiller is an integrated lightweight chiller.
4. The lightweight X-band non-destructive inspection electron linear accelerator according to claim 1, wherein the accelerating tube is of a fully metallic closed structure and maintains a high vacuum level by a titanium pump.
5. The lightweight X-band non-destructive inspection electronic linear accelerator according to claim 1, wherein said console is operated and maintained remotely by a remote control system.
6. The lightweight X-band non-destructive inspection electronic linear accelerator according to claim 5, wherein the console operation terminal interface is one of a touch screen, a computer, and a tablet computer.
7. The lightweight X-band non-destructive electron linear accelerator according to claim 1, wherein a high density material is used as a radiation shielding material around the accelerator tube.
8. The lightweight X-band non-destructive inspection electronic linear accelerator according to any one of claims 1 to 7, wherein the water cooling unit uses cooling water as a cooling medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310307738.1A CN116261251A (en) | 2023-03-28 | 2023-03-28 | Electronic linear accelerator for light X-band nondestructive testing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310307738.1A CN116261251A (en) | 2023-03-28 | 2023-03-28 | Electronic linear accelerator for light X-band nondestructive testing |
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| CN116261251A true CN116261251A (en) | 2023-06-13 |
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| CN202310307738.1A Pending CN116261251A (en) | 2023-03-28 | 2023-03-28 | Electronic linear accelerator for light X-band nondestructive testing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116390326A (en) * | 2023-03-28 | 2023-07-04 | 北京机械工业自动化研究所有限公司 | Main control box of X-band light accelerator |
| CN116847530A (en) * | 2023-07-25 | 2023-10-03 | 中广核辐照技术有限公司 | Adjusting device and adjusting method of electronic linear accelerator |
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| CN116847530A (en) * | 2023-07-25 | 2023-10-03 | 中广核辐照技术有限公司 | Adjusting device and adjusting method of electronic linear accelerator |
| CN116847530B (en) * | 2023-07-25 | 2024-02-20 | 中广核辐照技术有限公司 | Adjusting device and adjusting method of electronic linear accelerator |
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