Abstract

The phenomena of optically stimulated luminescence (OSL) has been known since long time (1). Antonov-Romanovski (2) first suggested that IR sensitive phosphors like SrS :Eu,Sm for the dosimetry of ionising radiation. On these lines quite a number of publications appeared discussing OSL dosimetry over TL dosimetry (3) and also X-ray iamging. To understand the OSL phenomena, one needs excitation (UV), emission (visible) and stimulation (IR) spectra. OSL is identical to TL evaluation, which is also known as 'Cold Method' where stored energy in the material after excitation is obtained optically and thermally in case of thermoluminescence.

© 1984 Optical Society of America