Absorbance and Conductivity of Aniline Hydrochloride/ Polyvinyl Alcohol Films (An/Pva) for Gamma Radiation Dosimetry in the Range 0 – 10 Kgy

Abstract

The changes of optical and electrical properties of aniline hydrochloride/polyvinyl alcohol films (AN/PVA) influenced by gamma radiation for the purpose of gamma dosimetry are presented in this work. Optically, by exposing films to doses of gamma radiation from 0 to 10 kGy, films showed visually apparent gradual change in color from violet to yellow green with increase of absorbance at 424 nm. Electrical, conductivity also was increased regularly in the same dose range. It can be suggested that aniline hydrochloride in the AN/PVA form may be used for dosimetry for the mentioned dose range.

Effects of Gamma Radiation on Electrical Conductivity of PVA-CH Composites

“…High energy electron beam cross-linking is used to produce heat-shrinkable plastic films for packaging foods and other consumer products, heat-shrinkable plastic tubing and encapsulations for industrial products, wire insulations, plastic foam and hydrogels for medical applications. Natural and synthetic polymers have been treated with ionizing radiation to modify their mechanical, structural, optical and electrical properties for various applications such as dosimetry and electrochemical, optical and electronic devices [1][2][3]. When polymers are exposed to high energy radiation such as gamma rays, there may be cross-linking or scission of the long polymer chains.…”