Model FWT-60 -Radiachromic Dosimeters

FWT-60 series of radiochromic dosimeters are designed for radiation processing. They are thin, colorless films that gradually change to deep blue in relation to absorbed dose. Colorless derivatives of the family of aminotriphenyl- methane dyes can be made radiochromic: that is they will change from colorless to a deeply colored state as a function of absorbed dose. The FWT-60 series of dosimeters use hexa(hydroxyethyl) aminotriphenylacetonitrile (HHEVC) dye. Analysis of the dosimeters is simple using a photometer or spectrophotometer. FWT manufactures Radiachromic readers designed specifically for analyzing its dosimeters. The wavelengths in general use are 510 nm and 600 or 605 nm. Together they cover the whole range of the dosimeter.