[1A07-10] Radiation, Radioactivity and Dose Measurement 1

[1A08] Study on reaction mechanism of PVA-KI gel dosimeter

*Takeyoshi Sunagawa¹, Glenn Harvel², Yutaro Aoki¹ (1. FUT, 2. Ontario Tech Univ.)

Keywords:Chemical dosimeter, Radiation therapy, Gel dosimeter, Reaction kinetics, PVA, KI

For PVA-KI gel, the phenomenon of returning to transparent by heating PVA-KI gel colored red by X-ray irradiation was measured using an ultraviolet-visible spectrophotometer at 290 nm, 360 nm, and 490 nm. Based on the results obtained by time-resolved measurement of absorbance, reaction kinetic analysis was performed, the reaction model was considered, and the rate constant was determined.