Photocathode distributed x-ray generating device and ct equipment with the device

A technology of generating device and photocathode, applied in the field of X-ray, can solve the problems of complex thermal management of cathode and complex production process, and achieve the effects of improving inspection efficiency and image clarity, system stability and simple structure

Active Publication Date: 2018-10-16
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are disadvantages of complex production process and complex cathode thermal management

Method used

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  • Photocathode distributed x-ray generating device and ct equipment with the device
  • Photocathode distributed x-ray generating device and ct equipment with the device
  • Photocathode distributed x-ray generating device and ct equipment with the device

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Embodiment Construction

[0035] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0037] figure 1 A pref...

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Abstract

The invention relates to the technical field of X-rays and discloses a photocathode-distributed X-ray generator, which comprises an electron emission unit, an anode target, a vacuum container and a control system, wherein the electron emission unit comprises a drive light source, an optical assembly and a photocathode; the optical assembly is used for carrying out reflecting, focusing and angle modulation on rays emitted from the drive light source; the photocathode is excited by the rays subjected to angle modulation through the optical assembly and then emits electrons at different positions of the photocathode; the control system is connected with the drive light source and the optical assembly separately; and the rays emitted from the drive light source irradiate different positions of the photocathode after angle modulation through the optical assembly to convert focus positions on the anode target according to a preset sequence. The X-ray generator disclosed by the invention can generate multi-view rays without moving the light source to improve the inspection efficiency, and the reliability and the stability are high. The invention further discloses a photocathode-distributed X-ray generation system and CT equipment.

Description

technical field [0001] The invention relates to the technical field of X-rays, in particular to a photocathode distributed X-ray generating device, an X-ray generating system including the photocathode distributed X-ray generating device, and CT equipment including the X-ray generating system. Background technique [0002] X-rays are widely used in industrial non-destructive testing, safety inspection, medical diagnosis and treatment and other fields. In particular, X-ray fluoroscopy imaging equipment made by utilizing the high penetrating ability of X-rays plays an important role in every aspect of people's daily life. The early days of this type of equipment were film-type plane perspective imaging equipment. The current advanced technology is digital, multi-view and high-resolution stereoscopic imaging equipment, such as CT (computed tomography), which can obtain high-definition three-dimensional graphics or slices Graphics, are advanced high-end applications. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J35/04H01J35/06H01J35/08H01J35/14
CPCH01J35/045H01J35/06H01J35/08H01J35/14
Inventor 唐传祥谭承君黄文会靳清秀颜立新杜应超
Owner TSINGHUA UNIV
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