OPTICALLY STIMULATED LUMINESCENCE RADIATION-DOSIMETRY USING DOPED SILICA GLASS

Optically stimulated luminescence is reported from novel transparent g lass phosphors that were previously exposed to Co-60 gamma radiation. Emission of blue-green light from the glass is stimulated by near-infr ared light from a low power diode laser. Optically stimulated luminesc ence dosimetry measurements using the glass phosphors exhibit a linear exposure response from 2.58 mu C.kg(-1) to 12.9 C.kg(-1) (10 mR to 50 kR). Optical stimulation with pulsed laser light provides the ability to perform multiple readouts of the exposure.