Study on application of PTFE, FEB and PFA fluoropolymers on radiation dosimetry
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2010
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Nuclear Instruments and Methods in Physics Research, A
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Changes induced by radiation in the UV–vis and Infrared absorbance spectra of fluoropolymer films were investigated. Samples (3 1cm2) of commercially available fluoropolymers, tetrafluoropolymer homopolymer (PTFE–Tecnofluor/DuPont) and its copolymers with hexafluoropropylene (FEP 1000 CDuPont) and perfluoroalkoxy (PFA 500 CLP–Dupont) were irradiated with 60Co gamma radiation in free air at electronic equilibrium conditions with absorbed doses between 1 and 150kGy. Studies of environmental condition effects, such as temperature and light, pre- and post-irradiation stability and dose range useful response were carried out. Fluoropolymers are very stable when exposed to different ambient conditions; the dosimetric wavelength is characteristic for each type of fluoropolymer and a linear correlation was found between gamma radiation dose and optical response.
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GALANTE, A.M.S.; GALANTE, O.L.; CAMPOS, L.L. Study on application of PTFE, FEB and PFA fluoropolymers on radiation dosimetry. Nuclear Instruments and Methods in Physics Research, A, v. 619, n. 1-3, p. 177-180, 2010. DOI: 10.1016/j.nima.2009.10.103. Disponível em: http://repositorio.ipen.br/handle/123456789/4735. Acesso em: 16 Mar 2025.
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