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Change of the hydrogen concentration induced by ion irradiation in the polyethylene films has been studied by MeV proton backscattering. Ion implantation of polyethylene film results in a strong breakup of chemical bonds in the chains with a large hydrogen emission leaving a carbon enriched film.These effects are confined in a cylinder around the ion track, of cross section 10−15 cm2 and a length comparable with the ion range.
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Calcagno et al. (1985) studied this question.
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