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

Device and method for measuring strong gamma ray energy spectrum using scattering method

A technology of γ-ray and scattering method, which is applied in the field of nuclear testing, can solve the problems of increasing the scattering share and difficult deductions, and achieve the effect of accurate efficiency correction

Inactive Publication Date: 2013-05-08
NORTHWEST INST OF NUCLEAR TECH
View PDF7 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) The Compton plateau produced by 1.17MeV and 1.33MeV gamma rays produced by cobalt-60 source in HPGe is superimposed on the low-energy full-energy peak, which increases the scattering share, which is difficult to deduct in the existing technology

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
  • Device and method for measuring strong gamma ray energy spectrum using scattering method
  • Device and method for measuring strong gamma ray energy spectrum using scattering method
  • Device and method for measuring strong gamma ray energy spectrum using scattering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The main working principle of the present invention includes two parts: scattering gamma energy spectrum measurement and measurement energy spectrum correction:

[0028] A. Scattering spectroscopy measurement.

[0029] see figure 1 The device for measuring strong gamma-ray energy spectrum by scattering method used in scattering energy spectrum measurement includes an irradiator 11 with shielding function, a high specific activity isotope radioactive source 12 arranged in the irradiator, and is used to align the irradiator. The front collimator 14 that limits the beam of the γ-ray 13 emitted from the straight hole, the scattering target 15 for receiving the quasi-parallel γ-ray beam 16 formed by the collimation of the front collimator 14, and the scattering target 15 for receiving the output at a fixed 50° angle The detector 18 of the scattered ray 17 is arranged in the inner cavity of the shielding body 19 with collimating holes. The scattering target 15 is preferabl...

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 device and a method for measuring strong gamma ray energy spectrum using a scattering method. The device for measuring strong gamma ray energy spectrum using the scattering method comprises an illuminator with a shield function, a high specific activity isotope radioactive source arranged in the illuminator, a front collimator used for constraining a gamma ray emerged through a collimating aperture of the illuminator, a scattering target used for receiving a quasi-parallel gamma ray beam formed by the collimation of the front collimator and a detector used for measuring a scattering ray with 662 kilo electron volt ( keV ) average energy obtained by scattering in a 50 degrees angle, wherein the detector is arranged in an inner cavity of a shield body with the collimating aperture. The device and the method for measuring strong gamma ray energy spectrum using the scattering method resolve the difficult problem of measurement of a strong gamma ray generated by a cobalt-60-source in a calibration laboratory.

Description

technical field [0001] The invention provides a measurement and data correction technology for the energy spectrum measurement of strong gamma ray radiation field, and belongs to the technical field of nuclear testing. Background technique [0002] Usually in the calibration laboratory, radiation source absorption, irradiators, walls, and experimental devices will further scatter the gamma rays emitted by the radiation source, which affects the monochromaticity of energy and brings certain deviations to experimental applications. Especially for the therapeutic level of gamma radiation field, it is necessary to develop radiation field energy spectrum measurement technology to obtain real energy spectrum information and provide accurate energy correction parameters for radiation field applications. However, for the therapeutic level radiation field, at a distance of 1m from the radiation source (usually the experimental location), its intensity can usually reach 10 8 ~10 9 c...

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): G01T1/36
Inventor 余小任全林苗亮亮潘孝兵屠荆宋朝晖江新标谭新建苏春磊宋晓靓马燕
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