Abstract
Stacks of polyvinylidene fluoride (PVDF) foils were exposed to an oxygen beam of 800 MeV. Electronic and structural modifications induced by the radiations were studied by X-ray photoelectron spectroscopy (XPS) using a monochromatized X-ray Al Kα source, and by electron spin resonance (ESR) experiments. It was observed that i) the creation of allenes compounds produced by the dehydrofluorination of PVDF; ii) the presence of primary free radicals and peroxide radicals. The amount of the created defects is related to the electronic ion stopping power dE/dx and to the deposited dose.
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