Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-sensitivity splicing CZT detector and sensitivity calibration method

A high-sensitivity, detector technology, used in radiation intensity measurement, instrumentation, radiation measurement, etc., can solve the problems of reduced ray deposition energy, lower detector sensitivity limit, and difficulty in obtaining large-sized single-crystal CZT materials. The effect of practicality, high sensitivity, and fast time response characteristics

Active Publication Date: 2016-12-21
NORTHWEST INST OF NUCLEAR TECH
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of thin crystals reduces the deposition energy of rays in the crystals, resulting in a lower upper limit of detector sensitivity
[0004] The limitation of crystal quality on material volume makes it extremely difficult to obtain large-size single-crystal CZT materials, which limits the sensitivity range of CZT detectors

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
  • High-sensitivity splicing CZT detector and sensitivity calibration method
  • High-sensitivity splicing CZT detector and sensitivity calibration method
  • High-sensitivity splicing CZT detector and sensitivity calibration method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The present invention will be further described below in conjunction with the drawings.

[0051] Such as figure 1 Shown is a schematic diagram of the structure of the high-sensitivity spliced ​​CZT detector of the present invention, which includes a sealed casing formed by successively fixing the front cover 1, the middle cylinder 2 and the rear cover 3 and the CZT semiconductor component fixed in the casing. The material of the sealed casing is Fe, and the inside is evacuated or filled with inert gas.

[0052] The CZT semiconductor component includes a substrate 5, a number of CZT single crystals 8 fixed on the substrate 5 by a sealant 6, and a planar electrode 9 respectively arranged on each CZT single crystal 8. The material of the planar electrode is gold and its area Consistent with the sensitive area of ​​the CZT single crystal, the thickness is 100nm±20nm. The planar electrode 9 includes a high-voltage electrode layer and a collecting electrode layer. The high-voltage...

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 high-sensitivity splicing CZT detector and a sensitivity calibration method. The invention provides a high-sensitivity cadmium-zinc-telluride (CZT) semiconductor detector comprising a housing, an output signal circuit, and a CZT semiconductor assembly; and the housing is formed by successive and fixed connection of a front cover, a middle cylinder, and a rear cover. Therefore, the restriction on the CZT crystal dimension by the crystal growth technology can be eliminated; the sensitive volume of the pulse radiation detector can be increased; and the sensitivity range upper limit of the detector can be extended. In addition, a method for calibrating the sensitivity of the CZT detector is also provided by the invention.

Description

Technical field [0001] The invention relates to a radiation detection device, in particular to a current-type pulsed gamma radiation detector suitable for high-intensity pulsed gamma time spectrum measurement. Background technique [0002] Cadmium zinc telluride (CdZnTe, CZT for short) is a new room temperature compound semiconductor material with comprehensive advantages such as small size, high resistivity, and wider band gap. The small size makes CZT detectors have strong compatibility in group detection, and has great advantages in space detection; high resistivity and wide band gap make CZT detectors have a lower temperature at room temperature Dark current breaks through the low temperature application conditions of commonly used Si and Ge semiconductor detectors, effectively reducing the complexity of the detection system. Research on radiation detection technology based on CZT materials can provide new detection technology approaches for medical diagnosis, industrial fla...

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): G01T1/24G01T7/00
Inventor 韩和同陈翔傅录祥管兴胤陈彦丽卢毅易义成刘君红
Owner NORTHWEST INST OF NUCLEAR TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com