Lamination scintillation type anti-compton gamma spectrometer

A Compton gamma spectrometer and stacking technology, applied in the field of radiation detection, can solve the problems of increasing equipment complexity and cost, increase the portability and flexibility of the instrument, simplify the measurement system, and reduce the complexity of the instrument and cost effects

Pending Publication Date: 2018-09-14
CHINA INST FOR RADIATION PROTECTION
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional design method requires two spectrometers and an additional

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
  • Lamination scintillation type anti-compton gamma spectrometer
  • Lamination scintillation type anti-compton gamma spectrometer
  • Lamination scintillation type anti-compton gamma spectrometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] 1. Probe structure

[0024] An exemplary stack scintillation type inverse Compton gamma spectrometer of the present invention includes a probe, the structure of which is as follows figure 1 shown, including CeBr 3 A crystal scintillator 1 , a BGO crystal scintillator 2 , a photomultiplier tube (PMT) and a charge-sensitive preamplifier 3 , and an aluminum casing 6 for sealing them.

[0025] CaBr 3 The crystal scintillator 1 is used to measure the gamma energy spectrum, and is cylindrical, with a size of φ25.4mm x 25.4mm; one end face is in contact with the shell, and the other end face and side are covered by the BGO crystal scintillator 2 .

[0026] BGO crystal scintillation 2 bodies connected with photomultiplier tube and charge sensitive preamplifier 3 for measurement in CeBr 3 The scintillating photons produced when ...

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

PropertyMeasurementUnit
Sizeaaaaaaaaaa
Dimensionsaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of radiation detection, and relates to a lamination scintillation type anti-compton gamma spectrometer. The lamination scintillation type anti-compton gamma spectrometer comprises a probe. The probe comprises a CeBr3 crystal scintillator, a BGO crystal scintillator, a photomultiplier and a charge-sensitive preamplifier and a shell packaging the parts. The CeBr3 crystal scintillator is used for measuring the gamma spectrum, and other external side parts are wrapped by the BGO crystal scintillator apart from the external side parts contacting the shell. The BGO crystal scintillator is connected with the photomultiplier and the charge-sensitive preamplifier and used for measuring the scintillation photons produced in the CeBr3 crystal scintillatorin case of the compton effect. With application of the lamination scintillation type anti-compton gamma spectrometer, the influence of the compton effect on measurement can be eliminated by only usingone instrument, and the coincidence circuit can be omitted and the instrument complexity and cost can be reduced so that the measurement system is enabled to be simpler, and the carrying convenienceand the use flexibility of the instrument can be increased.

Description

technical field [0001] The invention belongs to the technical field of radiation detection and relates to a laminated scintillation type inverse Compton gamma spectrometer. Background technique [0002] In application scenarios such as nuclear power plant liquid effluent monitoring and radioactive waste analysis, gamma spectroscopy is required. In the process of gamma energy spectrum measurement, some photons will have Compton effect in the sensitive area of ​​the detector, thus increasing the background of the all-energy peak area in the energy spectrum and increasing the lower detection limit of the measurement. Through anti-Compton technology, those events with Compton effect can be identified and removed from the gamma spectrum, thereby reducing the background and lowering the lower limit of detection. [0003] The traditional anti-Compton spectrometer is implemented by two independent detectors, and the main detector is used to measure the gamma energy spectrum. After...

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): G01T1/202G01T1/208
CPCG01T1/202G01T1/208
Inventor 陈立李强韦应靖以恒冠王明亮唐智辉方登富赵佳辉
Owner CHINA INST FOR RADIATION PROTECTION
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