Detector employing plastic scintillator to measure alpha and beta rays

Abstract

The invention relates to a detector employing a plastic scintillator to measure alpha and beta rays, belongs to the field of a nuclear radiation detector and solves problems of low alpha and beta surface pollution efficiency and small measurement area existing in a plastic scintillator. The detector comprises a detector top cover, an aviation plug, a detector casing, a light guide and plastic flash, a photomultiplier tube and a photomultiplier tube socket, wherein the light guide and plastic flash is fixed at the center position of a detector casing chamber, the photomultiplier tube socket anda multi-core signal wire are welded on a signal processing circuit board, a bottom end of the photomultiplier tube is plugged on the photomultiplier tube socket, a top end of the photomultiplier tubeis glued at the side surface of the light guide and plastic flash through optical adhesive, the signal processing circuit board is arranged on an inner bottom surface of the detector casing, a positioning column is screwed on the detector casing, a foot pad is fixed at a top portion of the positioning column, a film frame is arranged on an incident surface at a top portion of the detector casing,and the detector top cover is arranged on the film frame. The detector is advantaged in that surface pollution efficiency is high, and the measurement area is large.

Description

technical field [0001] The invention belongs to the field of nuclear radiation detectors, in particular to a detector for measuring alpha and beta rays by using a plastic scintillator. Background technique [0002] At present, with the vigorous development of my country's nuclear industry, radiation protection has become more and more important. Plastic scintillators are solid solutions of organic scintillating substances in plastics and belong to organic scintillators. It can be used for the detection of α, β, γ, and other rays. It is easy to make transparent bodies of various shapes, and has the advantages of non-deliquescence, stable performance, radiation resistance, short scintillation decay time and low price, and is a scintillator widely used today. Contents of the invention [0003] The object of the present invention is to provide a detector for measuring alpha and beta rays using plastic scintillators to solve the problems of low pollution efficiency of plastic...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a detector for measuring alpha and beta rays using plastic scintillators to solve the problems of low pollution efficiency of plastic scintillators on α and beta surfaces and small measurement area

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