Space charged particle telescope based on cadmium zinc telluride

Abstract

The invention discloses a space charged particle telescope based on cadmium zinc telluride. An opening is formed in the top end of an outer cover of the space charged particle telescope, a mounting base is arranged in the outer cover, a Si semiconductor detector, a first CZT detector and a second CZT detector are arranged on the mounting base, and the Si semiconductor detector and the first CZT detector form a first delta EE detector system; and the first CZT detector and the second CZT detector form a second group of delta EE detector systems, and the first delta EE detector system and the second delta EE detector system are matched to respectively measure charged particles with different energies. According to the invention, charged particles, thermal neutrons, gamma rays and other components in a space environment can be measured. The telescope can effectively measure information such as energy transfer linear density spectrum (LET), equivalent dose, charged particle energy spectrum, total dose, dose rate and the like of charged particles in space, has very important significance for astronaut radiation risk assessment, and can improve the resolution of the particle energy spectrum and enhance the particle identification capability compared with a traditional scintillation crystal system.

Description

technical field [0001] The invention relates to the technical field of space particle measurement, in particular to a space charged particle telescope based on cadmium zinc telluride (CZT). Background technique [0002] The radiation environment in space includes primary particles such as protons, alpha particles, and heavy charged particles with a wide energy spectrum, and secondary particles produced by these primary particles, such as thermal neutrons, fast neutrons, and gamma rays. Primary particles have a relatively wide energy spectrum. Therefore, in the space station, astronauts must be exposed to space radiation. The impact of high-energy charged particles on spacecraft and astronauts mainly includes radiation damage effects, single event effects, etc., causing a series of damage to spacecraft materials, electronic components, astronauts and biological samples. In order to accurately assess the radiation risk of astronauts, it is necessary to measure information su...

AI Technical Summary

Problems solved by technology

[0005] The ΔE-E system of the traditional scintillator detector has the problems of poor energy resolution and poor discrimination effect on lightly charged particles, and a larger liquid scintillator is required for the detection of thermal neutrons and fast neutrons , while the current CZT crystal is mainly used for X-ray detection, less used in the measurement of charged particles

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