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Method for simulation test about comprehensive space radiation effect of surface function material for spacecraft

A technology of functional materials and radiation effects, applied in the field of space environment engineering, can solve problems such as degradation failure, material performance degradation, satellite operation failure, etc.

Inactive Publication Date: 2012-07-11
NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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Problems solved by technology

When surface functional materials are irradiated by orbital particles (electrons, protons, alpha particles, heavy ions, etc.), the performance of materials will decrease, degradation and failure will occur, which may lead to malfunctions in satellite operations

Method used

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  • Method for simulation test about comprehensive space radiation effect of surface function material for spacecraft
  • Method for simulation test about comprehensive space radiation effect of surface function material for spacecraft
  • Method for simulation test about comprehensive space radiation effect of surface function material for spacecraft

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Embodiment Construction

[0018] The invention will be further described below in conjunction with the ground simulation test aimed at the 15-year comprehensive radiation effect of the kapton thin-film geosynchronous orbit.

[0019] For the kapton thin film, the ground simulation test chose the simultaneous irradiation method of 100keV electrons and 100keV protons to simulate the dose-depth distribution of the orbital comprehensive irradiation in the material, so as to achieve the purpose of equivalent effect.

[0020] The calculation of the dose-depth distribution of monoenergetic orbital integrated radiation in the kapton film uses Space radiation5.0 software, and the calling models are AE8 model, AP8 model and JPL1991 solar flare model.

[0021] After completing the calculation of the dose-depth distribution of 100keV electrons and 100keV protons in the kapton film, the total dose-depth distribution is calculated by accumulating the absorbed dose at the same depth according to the principle of accumu...

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Abstract

The invention provides a method for a simulation test about the comprehensive space radiation effect of a surface function material for a spacecraft, which belongs to the field of space environment engineering and can be applied to evaluation on the space environment effect of the surface function material for the spacecraft. When the spacecraft is in an on-orbit working, most surface function materials are directly exposed in the on-orbit environment, and the influence of the radiation environment is more severe. The surface function materials are irradiated by electrons, protons, alpha particles and heavy ions with wider energy and flux, and the radiation of all the particles can lead the performances of the surface function materials to be deteriorated. In a long-life design of a satellite, the capability of bearing the influence of the environment with comprehensive space radiation needs to be inspected. The method provided by the invention has an important significance in evaluation on the ground simulation test about the orbit radiation effect of the surface function material for the spacecraft.

Description

Technical field [0001] The invention relates to a simulation test method for space comprehensive radiation effect of surface functional materials for spacecraft, which belongs to the field of space environment engineering and is suitable for ground simulation tests and evaluations of orbital radiation environmental effects of surface functional materials for spacecraft. Background technique [0002] When the spacecraft is working in orbit, most surface functional materials are directly exposed to the orbital environment and are directly affected by the space environment. Among various environmental factors, the radiation environment is a very significant factor. When surface functional materials are irradiated by orbital particles (electrons, protons, alpha particles, heavy ions, etc.), the performance of materials will decrease, degradation and failure will occur, which may lead to malfunctions in satellite operations. [0003] The irradiation environment is a complex envi...

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Application Information

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IPC IPC(8): G01N17/00G01T1/02
Inventor 田海杨生胜薛华
Owner NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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