Dyed Grafted Poly(tetra fluoro ethylene-perfluoro vinyl ether) copolymer Film with Acrylic Acid for High-Dose Radiation Dosimetry

Naeem M. El-Sawy, Sahar A. Ismail, Moushera A. El-Kelany

Abstract


The grafted films of poly(tetra fluoro ethylene-perfluoro vinyl ether) copolymer film with acrylic acid ( PFA-g-PAAc) were prepared by ?-radiation. The films were allowed to react with an ionic dye, namely Brilliant Green (BG). The investigations show that these new dosimeter films of PFABG may be useful for high dose gamma radiation applications. The useful absorbed dose range of the dyed film extends up to about 400 kGy. The radiation-induced colour bleaching has been analyzed with visible spectrophotometery, either at the maximum of absorption band at 633 nm. The effects of relative humidity during irradiation, shelf-life and post-irradiation storage in dark and indirect daylight conditions on dosimeters performance are discussed.

Key word: Brilliant Green/ Poly(tetra fluoro ethylene-perfluoro vinyl ether) copolymer/ Acrylic Acid/ Radiation Dosimetry


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ISSN (Paper)2224-3224 ISSN (Online)2225-0956

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