Polymer gel dosimeter with AQUAJOINT (R) as hydrogel matrix

摘要

We report a polymer gel dosimeter based on a new gel matrix (AQUAJOINT (R)) that is a thermo-irreversible hydrogel formed by mixing two types of water-based liquids at room temperature. Normoxic N-vinylpyrrolidone-based polymer gels were prepared with AQUAJOINT (R). instead of gelatin. This AQUAJOINT (R)-based gel dosimeter exhibits a 2.5-fold increase in sensitivity over a gelatin-based gel dosimeter and a linear dose-response in the dose range of 0-8 Gy. This gel has heat resistance in a jar and controlled gel properties such as viscoelastic and mechanical characters, which may be useful for deformable polymer gel dosimetry.