High sensitive radiochromic dye and its application

Characteristics of various functional dyes and related compounds for a chemical radiochromic dosimeter are outlined. Chemical radiochromic dosimeters using new functional leuco dyes and high sensitive acid generators dissolved in chloroform and ethanol can be used over the absorbed dose range in 0.1-30 Gy. Plastic films with dissolved those dyes and functional materials, and with microcapsules included leuco dyes and organic solvent are applied to the routine dosimeter for the measurements of absorbed doses of γ-irradiation (60 Gy-1.2KGy), which is potentially useful for food and blood irradiation fields. (author)