Preliminary research on the dose response of polymer gel dosimeter with carbon beam irradiation

Abstract

This paper is to investigate dose response of polymer gel dosimeter after carbon irradiation. We employed polymer gel dosimeter, MAGAT-f to measure the dose response curve, single spot shape and Bragg peak range of carbon beam. Irradiation energy was 80.55 MeV/u. In order to characterize the dose response, R2-dose curve and absorbance-dose curve were built up. An approximate linearity is found for R2-dose relationship. Saturation is found for the absorbance of the gel after 10 Gy. The results illustrate the feasibility of utilizing polymer gel dosimeter for Bragg peak and spot shape measurement of carbon ion beam.