Unlock instant, AI-driven research and patent intelligence for your innovation.

CT system and its cold cathode x-ray tube

A technology of X-ray tube and cold cathode, applied in the field of field emission, can solve the problem of poor heat dissipation performance of anode

Active Publication Date: 2019-05-10
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a CT system and its cold-cathode X-ray tube for the problem of poor heat dissipation of the anode in the cold-cathode X-ray tube.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • CT system and its cold cathode x-ray tube
  • CT system and its cold cathode x-ray tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In order to facilitate the understanding of the present invention, a CT system and its cold-cathode X-ray tube will be described more fully below with reference to the relevant drawings. A preferred embodiment of a CT system and its cold cathode X-ray tube is shown in the attached drawing. However, a CT system and its cold cathode X-ray tube can be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to make the disclosure of CT system and its cold cathode X-ray tube more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizont...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a CT system and a cold cathode X-ray tube thereof. The cold cathode X-ray tube comprises a housing, an anode and a circulation assembly. A cavity is arranged in the housing. The anode is arranged in the cavity. The anode is connected with the housing so that the cavity is divided into a first part and a second part. The first part is filled with cooling liquid and the second part has the vacuum degree. The anode is arranged in the first part and the second part. Two ends of the circulation assembly are connected with the housing. The circulation assembly drives the cooling liquid to flow in a circulation manner in the first part. According to the invention, the two ends of the circulation assembly are connected with the housing, and the cooling liquid flows in the first part driven by the circulation assembly, so energy generated by bombardment on the anode by electronic beams can be brought out from the first part by the cooling liquid, so rapid cooling can be performed, thereby solving a problem of quite poor heat dissipation performance of the anode of the cold cathode X-ray tube.

Description

technical field [0001] The invention relates to the technical field of field emission, in particular to a CT system and a cold cathode X-ray tube thereof. Background technique [0002] Cold cathode X-ray tubes have the advantages of small size, fast switching and programmable control. The cold cathode X-ray tube is generally used in a CT (Computed Tomography, electronic computer tomography) system. The working principle of the cold cathode X-ray tube is: first, in the vacuum environment, the cold cathode generates an electron beam at a certain speed under the action of the electric field; secondly, the electron beam is accelerated by the focusing electric field and the anode electric field to bombard the anode target ; again, the electrons in the electron beam bombard the anode target; finally, when the electrons in the electron beam bombard the anode target, X-rays are generated by bremsstrahlung. [0003] When working, 99% of the kinetic energy of the electron beam in th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01J35/12
CPCH01J35/12
Inventor 洪序达梁栋石伟邓新汉
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI