Cold cathode X-ray tube and X-ray generating device

A technology of X-ray tubes and cold cathodes, which is applied in the direction of X-ray tubes, X-ray tube electrodes, X-ray tube components, etc., can solve the problems of short service life of cold-cathode X-ray tubes, reduce the risk of scrapping, The effect of improving the production pass rate and improving the service life

Pending Publication Date: 2022-05-27
海宁精奕电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcoming of the prior art, the object of the present invention is to provide a cold cathode X-ray tube and an X-ray generating device, which is used to solve the problem of short service life of the existing cold cathode X-ray tube

Method used

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  • Cold cathode X-ray tube and X-ray generating device
  • Cold cathode X-ray tube and X-ray generating device
  • Cold cathode X-ray tube and X-ray generating device

Examples

Experimental program
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Embodiment 1

[0070] like figure 1 As shown, this embodiment provides a cold cathode X-ray tube, the cold cathode X-ray tube includes: a casing 10 , an exit window 20 , an anode assembly 30 and a cathode assembly 40 .

[0071] The housing 10 has a first installation opening 11 and a second installation opening 12 . The first installation opening 11 is provided on the top of the housing 10 , and the second installation opening 12 is provided at the top of the housing 10 . side wall.

[0072] In this embodiment, the housing 10 includes a first housing 101 and a second housing 102 , a first fixing portion 101 a is provided on the periphery of the first housing 101 , and a first fixing portion 101 a is provided below the fixing portion 101 a A connecting portion 101b, the first casing 101 is connected to the second casing 102 through the first connecting portion 101b. The material of the first casing 101 includes but is not limited to glass, ceramics, stainless steel, oxygen-free copper or mo...

Embodiment 2

[0092] like Image 6 As shown, this embodiment also provides a cold cathode X-ray tube, the cold cathode X-ray tube includes a casing 10 , an exit window 20 , an anode target 32 ​​and a cathode assembly 40 .

[0093] The housing 10 has an installation opening 14 , the installation opening 14 is provided on the top of the housing 10 , and the exit window 20 is installed in the installation opening 14 .

[0094] In this embodiment, the casing 10 includes a first casing 101 and a second casing 102 . The first casing 101 is provided with a second fixing portion 101c at the periphery and a third connecting portion 101d at the bottom end of the first casing 101 . , the first casing 101 can be connected to an external device through the second fixing part 101c, and can be connected to the second casing 102 through the third connecting part 101d. The materials of the first casing 101 include but are not limited to glass, ceramics, stainless steel, oxygen-free copper and monel alloy; ...

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Abstract

The invention provides a cold cathode X-ray tube and an X-ray generating device. The cold cathode X-ray tube comprises a shell, an emergent window, an anode assembly and a cathode assembly, the shell is provided with a first mounting opening and a second mounting opening; the anode assembly comprises an anode column and an anode target; the emergent window is mounted at the first mounting opening, and the cathode assembly is mounted at the second mounting opening; or, the emergent window is mounted at the second mounting opening, and the cathode assembly is mounted at the first mounting opening; the cathode assembly comprises a fixed cover and a cold cathode, the fixed cover is connected with the shell, and the cold cathode is arranged at the corresponding mounting port and is arranged in the fixed cover; wherein the cold cathode comprises at least two emitter regions, each emitter region comprises at least one cathode single point, and the cathode single points are arranged towards the anode target. The cold cathode X-ray tube solves the problem that an existing cold cathode X-ray tube is short in service life.

Description

technical field [0001] The invention relates to the field of field emission technology, in particular to a cold cathode X-ray tube and an X-ray generating device. Background technique [0002] X-ray tubes are used to output X-rays, and the generated X-rays can be used for non-destructive testing inside objects, and are widely used in medical, security, industrial flaw detection and other fields. The X-ray tube generates electrons from the cathode, which is accelerated by the high-voltage electric field at both ends of the cathode and anode. The accelerated electrons hit the target surface and generate X-rays through the bremsstrahlung mechanism. The external high-voltage power supply outputs a stable high-voltage electric field to the cathode and anode, and the external shell vacuum packaging provides a high-vacuum environment, so that the electron impact event can run continuously and stably, and finally obtain a continuous and stable output of X-rays. [0003] The cathode...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J35/06H01J35/16
CPCH01J35/064H01J35/065H01J35/16
Inventor 黄芳亮
Owner 海宁精奕电子有限公司
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