Abstract

Optically stimulated luminescence (OSL) dosimetry measurements using Cu+-doped fused quartz are reported. The dose response to 60Co ? rays is measured over the range of doses from 2.6 x 10-6 to 5.2 x 10-2 C.kg-1 (10 mR to 200 R). The fading behaviour of the OSL traps and the thermoluminescence (TL) traps are found to be the same. Optical stimulation was found to have a significant effect on the TL glow curve. Spectral measurements of the photoluminescence, TL emission and OSL emission reveal that the Cu+ ions are the luminescence centres for radioactive recombination following the depopulation of both the TL and OSL traps. The results indicate that the TL and OSL traps in the Cu+-doped fused quartz are the same.

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