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Information × Registration Number 0213U005616, 0111U009716 , R & D reports Title The development of new ion-beam analytical and informative technologies for the research of radiation processes, elemental and isotopic distribution in nanostructures, construction materials and production of nuclear energetic, the estimate of influence of nuclear fuel cycle enterprises on environment and human health. popup.stage_title Head Levenets Volodymyr Viktorovych, Registration Date 27-06-2013 Organization National Science Center "Kharkiv Institute of Physics & Technology" popup.description2 Oxygen losses in polyethylene terephthalate (PET, Mylar, (C10H8O4)n) samples under proton bombardment in vacuum were studied with proton energies 1.0 and 1.6 MeV, in the fluence range from 5·1012 to 2.6·1016 cm-2 at the current density 1 ?A/cm2. The oxygen depletion was ivestigated in situ by proton backscattering spectrometry. The relation between oxygen content n and the fluence was studied for the nearsurface layer of a sample (up to 0.9 ?m for 1.0 MeV proton energy, and 1.9 ?m for 1.6 MeV energy). Approximation n=n0exp(-? ) was used at the initial section of the n( ) dependence (up to 20% oxygen content decreasing). Here ? is the oxygen depletion cross section.The measured cross section values equal 1.2·10-17 cm2 (±25%) for 1.0 MeV proton energy, and 1.1·10-17 cm2 (±14%) for 1.6 MeV energy. Product Description popup.authors Гончаров Олександр Васільович Пістряк Віктор Михайлович popup.nrat_date 2020-04-02 Close