Wide Range Tissue Equivalent Proportional Counter and Its Application

A proportional counter and tissue equivalent technology, applied in radiation intensity measurement and other directions, can solve the problems of large radiation field, dose equivalent rate level difference, difficulty in taking into account fluence rate, etc., and achieve increased detection efficiency, simple structure, and convenient measurement Effect

Active Publication Date: 2019-03-12
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In order to solve the problem that the existing tissue equivalent proportional counter is difficult to take into account the radiation field measurement problem with large differences in fluence rate and dose equivalent rate, the present invention provides a tissue equivalent proportional counter with a wide range and its application

Method used

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  • Wide Range Tissue Equivalent Proportional Counter and Its Application

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Embodiment

[0029] A typical structure of the wide-range tissue equivalent proportional counter of the present invention is shown in the appended figure 1 . The wide-range tissue-equivalent proportional counter includes a housing 7, a voltage dividing circuit 6, a multi-channel signal acquisition system 5, and a conductive tissue-equivalent material cathode plate 1, a conductive Tissue-equivalent material plate 2, GEM film 3 and anode plate 4; said conductive tissue-equivalent material plate 2 is provided with arrayed openings 10, and its material is A150 tissue-equivalent plastic; said conductive tissue-equivalent material cathode The plate 1, the conductive tissue equivalent material plate 2, and the GEM film 3 are all connected to the voltage divider circuit 6; Arrayed anode unit 11; the anode plate 4 is connected to the multi-channel signal acquisition system 5; the housing 7 is provided with an air charging port 8 with a valve 9, the material of the housing 7 is aluminum, and the ho...

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Abstract

The invention relates to a radiation detection device and provides a wide-range TEPC (tissue-equivalent proportional counter) and an application thereof in order to solve the problem that an existing TEPC is hard to give consideration to radiation field measurement with larger differences of fluence rate and equivalent dose rate levels. The wide-range TEPC comprises a casing, a voltage division circuit, a multichannel signal collection system as well as a conductive tissue equivalent material negative plate, a conductive tissue equivalent material plate, a GEM membrane and a positive plate which are located in the casing and overlaid in sequence from top to bottom. The application method of the wide-range TEPC comprises steps as follows: step one, the wide-range TEPC is placed in a to-be-detected radiation field; step two, signals are collected; step three, the signals are processed. The wide-range TEPC has a quite wide measuring range, can realize measurement of the radiation fields with low fluence rate and high fluence rate conveniently, is smaller in size, relatively simple in structure, easy to manufacture and quite wide in applicable range, and can be applicable to radiation monitoring of various occasions.

Description

technical field [0001] The invention relates to a radiation detection device, in particular to a wide range tissue equivalent proportional counter and its application. Background technique [0002] The tissue equivalent proportional counter is a detector used to evaluate the relative biological effects of radiation, which can directly obtain the absorbed dose (rate) by simulating and measuring the micro-dose spectrum (also known as the line energy spectrum) of micron-scale cell tissue in the radiation field and dose equivalent (rate), which can be used in space radiation, radiation protection, microdosimetry, radiation therapy and other fields. [0003] The tissue equivalent proportional counter has the advantages of wide measurement range of line energy, good particle resolution ability, suitable for dose measurement of spatially mixed radiation field, etc., so it has been widely recognized in the world. At present, the tissue equivalent proportional counter has been used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/18
CPCG01T1/18
Inventor 张伟华李春娟王志强刘毅娜骆海龙李玮
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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