Measuring device to determine the doseMeasure of a radiation effect to be indicated more precisely.... The radio-photoluminescenceProperty of certain substances to form fluorescence centres ... effect which is the property of certain substances to emit fluorescent light of greater wave length upon irradiation with ultraviolet light when previously exposed to ionizing radiationAny radiation which directly or indirectly ionizes, e.g. alp..., is used to determine the doseMeasure of a radiation effect to be indicated more precisely.... Silver-activated metaphosphate glasses – glasses made of alkaline and alkaline earth phosphates with some percent of silver metaphosphate – show this photoluminescence effect for example. The intensity of the fluorescent light is proportional over wide areas of the irradiated doseMeasure of a radiation effect to be indicated more precisely....