Profile: Far West Technology & Health Physics Instruments is a manufacturer of radiation measuring products for the nuclear physics, medical, and materials fields. Our product line includes dosimetry products, detectors, LET and ions. Our 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 radiochromic readers designed specifically for analyzing its dosimeters. The wavelengths in general use are 510 nm, 600, or 605 nm. Our IC-17 is a three terminal 1 cc spherical ionization chamber. It is available with a wide range of different wall materials including tissue equivalent plastic, air equivalent plastic, graphite, magnesium, and polyethylene. These chambers are used for direct comparison of radiation source strengths, beam monitoring in accelerator facilities, and accurate measurement of absorbed dose at a prescribed experimental point. By using a pair with different wall materials, one hydrogenous and one non hydrogenous, it is possible to measure mixed fields and separate the gamma and neutron components. The spherical detector is mounted on the end of a stem with the signal connections made through a terminal block. The block contains the BNC signal connector and the MHV high voltage connector. The stem effects are less than 1 x 10E-12A for a 1 x 10E4 R/h exposure with Co60. The effect may be minimized by using a + and - collecting voltage on the detector and averaging the readings.