[6a-S43-1~9] 2.2 Detection systems

△ [6a-S43-2] Visualization for Low Energy X-ray Using Fiber-type Dosimeter Containing Photochromic Dye and BaFCl:Eu²⁺

〇(M1C)Takato Iwata¹, Tsuchida Hayato¹, Kinashi Kenji², Sakai Wataru², Tsutsumi Naoto² (1.Graduate School of Sci & Tech, Kyoto Inst of Tech., 2.Fac of Material Sci & Eng, Kyoto Inst of Tech.)

Keywords:dosimeter, fiber, Photochromism

The management of radiographic inspection or personal exposure to radiation is a pressing global concern. In this study, a polystyrene (PS)-based composite fiber consisting of a photochromic spiropyran dye, 1,3,3-trimethylindolino-6’-nitrobenzopyrylospiran (6-nitro BIPS), and a photostimulable phosphor, europium-doped barium fluorochloride (BaFCl:Eu²⁺), were developed for the detection of X-ray exposure doses on the order of a milligray (mGy). The colours of the composite fiber was changed from white to deep blue with ultraviolet light irradiation and X-ray exposure. We measured the photochromic characteristics with ultraviolet light and X-ray sensitivity.