Material evaluation for development of solid-state dosimeter applying ESR dosimetry

Kitamura, Yoshimasa; Oka, Toshitaka   ; Yokozuka, Eri*; Nagasawa, Naotsugu*; Seito, Hajime*; Kitatsuji, Yoshihiro  

We evaluated the applicability of hydroxyapatite, which is a main component of tooth enamel, as individual dosimeters that can detect from less than 1 Gy. The relationship between the radical intensity and the absorbed dose shows a good linearity from unirradiated (0 Gy) to 75 Gy, and the lower detection limit of this samples was estimated to be ~100 mGy. It suggests that this sample can be used as a candidate of a new soli-state individual dosimeter.