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Method for testing influence of space charged particle irradiation on molecular contamination effect

A test method and technology of charged particles, applied in the field of space environment simulation, can solve the problems of unconsidered radiation environment, differences in actual conditions, imperfections, etc., and achieve the effects of not affecting the base material, simple operation, and high test accuracy.

Active Publication Date: 2014-03-26
SHANGHAI INST OF SATELLITE EQUIP
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AI Technical Summary

Problems solved by technology

Some existing models can predict the pollution effect with a certain accuracy, but there are still imperfections, such as the impact of the radiation environment is basically not considered, which leads to the difference from the actual situation in orbit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A test method for the influence of space charged particle irradiation on molecular pollution effects, including the following steps:

[0032] Step 1: Space pollution effect test

[0033] In a closed vacuum container, the vacuum degree is maintained at 1×10 -4 Pa; Place the satellite epoxy resin adhesive sample in the heating unit with a heating temperature of 125°C and a heating time of 24h; compress the J-1 glass sheet on the surface of the cooling unit, with a cooling temperature of 25°C and a cooling time of 24h; test After the end, the small molecules volatilized from the satellite epoxy resin adhesive sample are deposited on the surface of the J-1 glass sheet to form a contaminant film.

[0034] Use physical or chemical methods to analyze the chemical composition and thickness of the pollutant film.

[0035] Step 2: Calculation of space particle irradiation effect

[0036] Use space particle (proton and electron) radiation effect calculation software to calculate the range ...

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Abstract

The invention provides a method for testing influence of space charged particle irradiation on a molecular contamination effect, wherein the method comprises a space charged particle irradiation test method, a space molecular contamination effect test method, a space charged particle irradiation effect calculation method, and a space molecular contamination effect evaluation method. The method for testing influence of space charged particle irradiation on the molecular contamination effect relates to the following materials: an epoxy binder for a satellite, a white thermal control coating for a satellite, and a J-1 transparent glass sheet. According to the method for testing influence of space charged particle irradiation on the molecular contamination effect, irradiation particles are only deposed in a contamination film without influence on a substrate material for bearing the contamination film, and the influence on the molecular contamination effect caused by the space charged particle irradiation to the contamination film can be accurately determined.

Description

Technical field [0001] The invention relates to the technical field of space environment simulation, in particular, to a test method for the influence of space charged particle irradiation on molecular pollution effects. Background technique [0002] According to the definition in the International Organization for Standardization ISO15388 "Space-contamination and cleanliness", the effect of molecular substances deposited on the sensitive surface of a spacecraft is called pollution. Pollution effects occur on the surface of optics, thermal control and solar panels, which can degrade the performance of the spacecraft's optical, thermal control and energy sub-systems, and can lead to failure in severe cases. Therefore, it is an important environmental effect. Spacecraft pollution effects are divided into plume pollution and molecular pollution. Plume pollution is the pollution of the sensitive surface caused by the emissions of the spacecraft attitude control engine. It can be con...

Claims

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Application Information

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IPC IPC(8): G01N15/04
Inventor 刘刚杨碧琦周博王惠芬韩海波潘阳阳张丽新
Owner SHANGHAI INST OF SATELLITE EQUIP
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