A Space Telescope for Charged Particles Based on Cadmium Zinc Telluride

Abstract

The invention discloses a space charged particle telescope based on cadmium zinc telluride. The top of the outer cover is provided with an opening, the outer cover is provided with a mounting seat, and the mounting seat is provided with a Si semiconductor detector, a first CZT detector and a second CZT The detector, the Si semiconductor detector and the first CZT detector form a first group of ΔE‑E detector systems, the first CZT detector and the second CZT detector form a second group of ΔE‑E detector systems, and the first group ΔE The ‑E detector system and the second group of ΔE‑E detector systems work together to measure charged particles of different energies. The invention can measure components such as charged particles, thermal neutrons and gamma rays in the space environment. It can effectively measure the linear energy transfer (LET), equivalent dose, charged particle energy spectrum, total dose, dose rate and other information of charged particles in space, which is of great significance for astronaut radiation risk assessment. Compared with traditional scintillation The crystal system can improve the resolution of particle energy spectrum and enhance the ability of particle identification.

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 heavily charged particles with a wide energy spectrum, as well as secondary particles generated by these primary particles, such as thermal neutrons, fast neutrons, and gamma rays. The energy spectrum of primary particles is relatively wide. 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 t...

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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