Space particle detector and data collecting and processing method thereof

A space particle and data processing unit technology, applied in radiation intensity measurement and other directions, can solve the problems of large volume and weight, and the lower limit of detection energy, and achieve the effects of small footprint, reduced circuit area, and low power consumption

Active Publication Date: 2014-07-30
INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCI
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Problems solved by technology

Its main disadvantage is that it mainly detects charged particles, but does not detect electrons and uncharged particles—gamma rays; and

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  • Space particle detector and data collecting and processing method thereof
  • Space particle detector and data collecting and processing method thereof
  • Space particle detector and data collecting and processing method thereof

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[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings. The radiation detector of the present invention can be designed as a three-layer telescope structure (the detectors are concentrically arranged in a row), and the distance between SD1 and SD2 is relatively close, and the distance between SD3 and SD2 is relatively long. Such as figure 2 shown. The whole particle detector consists of three layers of detectors, which are: the first layer of partial energy detector dE, which is a relatively thin Si detector, such as Si, Si-PIN, and gold-silicon surface barrier detectors of 50 microns to 200 microns ; The second layer of energy detector E, using a thicker CZT detector (CZT CdZnTe cadmium zinc telluride crystal) to measure the approximate total energy E of charged particles, can also use 3 ~ 15 mm thick CZT, Si, Si-PIN, Gold-silicon surface barrier detectors or centimeter-scale scintillator detectors (such as CsI);...

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Abstract

The invention discloses a space particle detector and a data collecting and processing method thereof. The space particle detector comprises a semi-closed structure with an incidence window. A part energy detection unit SD1, an energy detection unit SD2 and an anticoincidence detection unit SD3 are sequentially arranged in the semi-closed structure along the incidence window inwards. The part energy detection unit SD1, the energy detection unit SD2 and the anticoincidence detection unit SD3 are arranged in parallel, and the center of the part energy detection unit SD1, the center of the energy detection unit SD2 and the center of the anticoincidence detection unit SD3 are located on the same axis. The signal output end of the part energy detection unit SD1, the signal output end of the energy detection unit SD2 and the signal output end of the anticoincidence detection unit SD3 are connected with a data processing unit. The data processing unit is used for judging particle varieties and energy ranges according to input signals. The detector is suitable for space particle detection and low in energy consumption; charged particles and uncharged particles can be detected, the different particles are distinguished, the incident energy ranges of the particles are judged, and the data of the detector are processed in real time and downloaded in real time.

Description

technical field [0001] The invention relates to a space particle detector and a data collection and processing method thereof, belonging to the technical field of space particle detection. Background technique [0002] The space particle detector is a small, low-power, multi-particle radiation detection device located in the return module of Shijian-10 satellite, near the biological petri dish. It counts the fluxes of protons, alpha particles, electrons and gamma rays, which are the main components in the space radiation environment, and obtains the radiation field experienced by mouse cells and fruit fly cells in the space environment. The received radiation dose value is evaluated. The space particle detection algorithm completes the real-time processing of the digitized signal of the detector signal, distinguishes the particle and the energy range of the particle, and makes statistics on it. [0003] The space radiation detector is mainly to prepare for the future manne...

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Application Information

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IPC IPC(8): G01T1/20
Inventor 刘雅清王焕玉崔兴柱彭文溪梁晓华樊瑞睿张飞高旻汪锦州张云龙杨家卫张家宇乔锐张承模董亦凡郭东亚周大卫
Owner INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCI
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