Thermoluminescence characteristics of Lu2O3:Pr,Hf red emitting storage phosphor

Abstract

Lu2O3:Pr,Hf ceramics were prepared by means of high temperature sintering and their thermoluminescent characteristics were investigated. After stimulation with X-rays or deep-UV photons strong thermoluminescence bands peaking at around 110°C, 220°C and 310°C were observed. The lowest temperature peak was found to fade completely within first few hours. However, the other components of the glow curve showed measureable fading only after a few months in dark.