Preparation of alanine/esr dosimeter using different binder of polymer blend

Abstract

Different composition of polymer blend of low density polyethylene (PE) and polystyrene (PS) have been studied to be used as a binder for the preparation of Alanine/ESR dosimeter. The polymer binder and Alanine powder were blended in a Laboplastomil Mixer at 140°C and then it was pressed into a plastic film of 0.50 mm thickness. The film was cut into sample size of 250 mm × 2.5 mm and irradiated by gamma rays from a cobalt-60 source at different dose and dose rate. It was found that a blend of Alanine, PS and PE in composition of 60:30:10 is appropriate to prepare the Alanine/ESR dosimeter.