Energy spectrum analytical method of X-ray filtering reference radiation

A technology for reference radiation and energy spectrum analysis, which is applied in the field of ionizing radiation measurement and can solve problems such as low energy spectrum accuracy

Inactive Publication Date: 2013-06-05
CHINA INST FOR RADIATION PROTECTION
View PDF3 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Continuous X-ray energy spectrum analysis has always been a difficult problem in the field of nuclear detection. In the early days, NaI detectors were used for experimental measurement, and energy spectrum analysis was performed by methods such as stripping spectroscopy. The accuracy of the energy spectrum obtained was low; after the development of HPGe spectrometers, Internationally, HPGe spectrometers have been used to conti

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
  • Energy spectrum analytical method of X-ray filtering reference radiation
  • Energy spectrum analytical method of X-ray filtering reference radiation
  • Energy spectrum analytical method of X-ray filtering reference radiation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] According to the interaction between photons and matter, the detector is used to measure monoenergetic photons. Before entering the sensitive volume of the detector, the incident photons may interact with shielding body, detector casing, air, etc. after entering the sensitive volume of the detector. The interaction that occurs is not single, but includes a variety of different effects, so the energy response of a monoenergetic photon includes: all-energy peaks, escape peaks, backscattering peaks, Compton plateaus, characteristic X-rays and other components and the measurement spectrum obtained by using the energy spectrometer to measure the X-ray reference radiation can be regarded as the superposition of the energy response of the monoenergetic photon with continuous energy, which is the pulse height spectrum, and is the deposited energy spectr...

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 belongs to the technology of ionizing radiation, in particular to an energy spectrum analytical method of X-ray filtering reference radiation. The energy spectrum analytical method of X-ray filtering reference radiation measures X-ray filtering reference radiation of low air kerma rate and narrow-spectrum through an HP Ge energy disperse spectroscopy, finds out a method that energy spectrum analysis of the measured spectrum can be conducted through a backscrolling energy spectrum method, obtains fluence spectrum and characteristic values of a reference radiation field, and compares the fluence spectrum and characteristic values with the recommended value of the fluence spectrum and characteristic values of the national standard, good in conformance, and verifies accuracy and reliability of the established X-ray reference radiation.

Description

technical field [0001] The invention belongs to ionizing radiation measurement technology, in particular to an energy spectrum analysis method for filtering X-ray reference radiation. Background technique [0002] Filtering X-ray reference radiation is a very important reference radiation in ionizing radiation metrology. The national standard "GB / T 12162-2000" stipulates the average energy, energy resolution, half-value layer, homogeneity coefficient and other parameters of different series of filtered X-ray reference radiation, and recommends to confirm the average energy and energy resolution by energy spectrum research Rate. Continuous X-ray energy spectrum analysis has always been a difficult problem in the field of nuclear detection. In the early days, NaI detectors were used for experimental measurement, and energy spectrum analysis was performed by methods such as stripping spectroscopy. The accuracy of the energy spectrum obtained was low; after the development of H...

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 牛强张庆利金成赫韦应靖黄亚雯
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

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