Wide-range TEPC (tissue-equivalent proportional counter) and application thereof

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 ...

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

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