The response characteristics of GafChromic dosimetry media to 60Co gamma rays

Abstract The dosimetric characteristics of GafChromic Dosimetry Media after being irradiated by 60 Co gamma rays have been studied and the dependence of the radiation-induced absorbance on the temperature during irradiated and during reading and the postirradiated effect are reported. The dose-response characteristics of the films to 60 Co gamma rays at the reading wavelengths of 400 and 580 nm have been analyzed, and the suitable range (0.1–45 kGy) and conditions of practical use are recommended according to the results.