Annular addressable cold cathode X-ray source device and preparation method and application thereof

A cold cathode and X-ray technology, applied in the field of X-ray sources, can solve the problems of difficult object irradiation and difficult application of CT imaging, etc., and achieve high-quality and low-cost effects

Pending Publication Date: 2022-03-15
SUN YAT SEN UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, although there have been related technologies of flat-plate cold-cathode X-ray sources with addressable functions, such as the Chinese invention patent with the publication number CN109256310A, however, the above-mentioned prior art is general

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
  • Annular addressable cold cathode X-ray source device and preparation method and application thereof
  • Annular addressable cold cathode X-ray source device and preparation method and application thereof
  • Annular addressable cold cathode X-ray source device and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0038] refer to Figure 1 to Figure 5 , is an embodiment of an annular addressable cold cathode X-ray source device of the present invention, including an anode and a cathode, the anode includes an anode substrate 6 and a transmission target film 7, and the cathode includes a cathode substrate 1, a cathode electrode 2, An insulating layer 4, a gate electrode 5 and a plurality of low-dimensional nano-cold cathodes 3 for emitting electrons; the cathode substrate 1 is in a ring or polygonal shape, and the cathode electrode 2, the insulating layer 4 and the gate electrode 5 are arranged On the inner wall of the cathode substrate 1, the insulating layer 4 is arranged between the cathode electrode 2 and the grid electrode 5; the low-dimensional nano cold cathode 3 is arranged on the cathode electrode 2; the shape of the anode substrate 6 is a ring The transmissive target film 7 is arranged on the outer wall of the anode substrate 6; several spacers 8 for insulation are arranged betw...

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 discloses an annular addressable cold cathode X-ray source device which comprises an annular or polygonal anode and a cathode, the anode comprises an anode substrate and a transmission target film, and the cathode comprises a cathode substrate, a cathode electrode, an insulating layer, a gate electrode and a plurality of low-dimensional nano cold cathodes; the cathode substrate, the cathode electrode, the insulating layer and the gate electrode are arranged on the inner wall of the cathode substrate, and the insulating layer is arranged between the cathode electrode and the gate electrode; the low-dimensional nano cold cathode is arranged on the cathode electrode; the transmission target film is arranged on the outer wall of the anode substrate; and a plurality of isolation pieces for insulation are also arranged between the anode and the cathode. The annular addressable cold cathode X-ray source device can irradiate an object in all directions and all angles without a mechanical rotating structure, and the problems that an existing discrete X-ray tube array is low in imaging precision and complex in control system, and a flat plate X-ray source is limited in imaging angle are solved.

Description

technical field [0001] The present invention relates to the technical field of X-ray sources, and more specifically, to an annular addressable cold-cathode X-ray source device and its preparation method and application. Background technique [0002] X-ray CT imaging has important applications in scientific research, industrial inspection, medical treatment and other fields. Common X-ray CT imaging equipment uses a hot cathode X-ray tube as a light source, so complex mechanical structures are required to irradiate the light source to different parts of the human body. Due to the advantages of faster response time, smaller size and lower energy consumption, cold cathode X-ray sources are used as light sources in X-ray CT imaging, which can reduce the complexity of the mechanical structure of the equipment and reduce its volume. [0003] Cold cathode X-ray sources can generally be divided into two types: X-ray tubes and flat-panel X-ray sources. There have been reports on the...

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
IPC IPC(8): H01J35/06H01J35/08H01J35/24H01J9/02H01J9/18A61B6/03A61B6/00
CPCH01J35/064H01J35/08H01J35/24H01J9/022H01J9/18A61B6/032A61B6/40
Inventor 陈毅聪陈军邓少芝许宁生
Owner SUN YAT SEN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap