DOSIMETRY USING HS GafChromic FILMS The influence of readout light on sensitivity of dosimetry

The goal of this study is to compare the sensitometric curves for HS model of GafChromic film using different dose read-out systems. Two commercial densitometers using fluorescent light source were tested and compared with results obtained using spectrophotometry. It was found that sublinear response of densitometers is due to the polychromaticity of emitted light and that response curve can be predicted by analysing absorption spectra of the film. Physical chemistry 2006 : 8th international conference on fundamental and applied aspects of physical chemistry; Belgrade (Serbia); 26-29 September 2006