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The influence of high-energy charged-particle bombardment and UV light irradiation on chemical structure of polyimide films was investigated to clarify the mechanism of material degradation in space. The films were exposed to oxygen or nitrogen ion beams with 0.5 keV, to electron beams with 20-30 keV and to UV and visible light of 250-600 nm. X-ray photoelectron spectroscopic analysis showed structural...
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