Lyoluminescence characteristics of trehalose dihydrate

Lyoluminescence (LL) of trehalose dihydrate showed a linear gamma ray sensitivity in the dose range 0.1-5 x 10(2) Gy. At increased sample weight dissolved, the LL/mg showed a reduction when the microcontroller based integrated measurement system was used. The LL/mg was found to be independent of the sample weight when the instantaneous peak output observed by the electrometer amplifier on dissolution of the phosphor was taken as a measure of LL yield. The LL spectral measurement of trehalose dihydrate in luminol solution (LL sensitizer) confirms an energy transfer from the radiation induced free radicals to luminol molecule to produce light.