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In order to understand the vacuum effects on the sensitivity of PADC detectors from the viewpoint of molecule structural modification along nuclear tracks, a series of FT-IR spectrometric studies has been made for PADC films exposed to He and C ions at energies below 6 MeV/n, as well as to gamma rays from an intense Co-60 source, under the both conditions of in air and in vacuum. The radiation chemical...
Radiation chemical yield, G value, for loss of carbonate ester bonds in PADC films, exposed to gamma ray from intense Co-60 source, has been determined by means of FT-IR spectrometry. The obtained value of 20 (scissions/100eV) is fairly higher than that from heavy ion irradiations. It was found the density of hydroxide group in the film significantly increased by the exposure in air but hardly changed...
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