Charged particle detector of white neuron source charged particle detecting spectrometer

Abstract

The invention discloses a charged particle detector of a white neuron source charged particle detecting spectrometer. The charged particle detector of the white neuron source charged particle detecting spectrometer comprises a delta E-E detector and an ionization chamber detector, wherein the delta E-E detector is a compound gas-solid detector and composed of a small multiwire proportional chambergas detector and a cerium iodide solid detector, which are mutually independent, and provided with a 0.5 mu m thick polyethylene film particle beam window; the ionization chamber detector is providedwith a 8 mu m thick polyimide film or polyester film particle beam window. According to the charged particle detector of the white neuron source charged particle detecting spectrometer, the delta E-Edetector is provided with the 0.5 mu m thick polyethylene film particle beam window, allowing charged particles to easily pass through and meanwhile avoiding being cracked under 5000 Pa pressure; theparticle beam window of the ionization chamber is made of 8 mu m thick polyimide film or PET (polyethylene), thereby allowing easy penetration of the charged particles and bearing 1 atm pressure.

Description

technical field [0001] The present application relates to the field of neutron detection, in particular to a charged particle detector used in a white light neutron source charged particle detection spectrometer. Background technique [0002] The white light neutron source is an extremely useful tool for nuclear data measurement and research, which can provide key nuclear data for the design of new nuclear energy facilities, nuclear astrophysics research, basic physical science, and national defense technology. Nuclear data measurement research has been carried out in the world for nearly 80 years, and has gone through several stages of nuclear data measurement for single-energy point neutron sources, white-light neutron sources in resonance regions, and fast white-light neutron sources. Before the 1960s, low-energy accelerators were mainly used to produce monoenergetic neutrons with a certain intensity through the reactions of d-D, d-T, p-T and p-7Li to measure the neutron ...

AI Technical Summary

Problems solved by technology

The function of the charged particle detector is to detect charged particles. The existing charged particle detectors either have poor durability and are prone to breakage of the particle beam window in a pressure environment; or have poor permeability of charged particles and cannot meet the requirements of LPDA.

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