MASS EFFECT IN RADIATION-INDUCED LYOLUMINESCENCE OF SUGARS

In view of the contradictory reports of various investigators, the mas s effect in radiation-induced lyoluminescence has been reinvestigated using a photon-counting technique. It is seen that the mass effect is present in both the disaccharide materials investigated, viz. sucrose and trehalose dihydrate. A likely cause of the effect may lie in the f ree radicals getting quenched in solution due to molecular aggregation at larger masses when the recombined nonradical product (due to radic al-radical interaction) increases. This results in a decrease in LL yi eld with an increase of solute mass.