Experimental study on gamma ray induced light output deterioration in LaBr3 :Ce scintillator
2020
Abstract In this paper, the effects of dose and dose rate on the light output of LaBr3:Ce scintillator are studied in detail. The relative light output of the crystal is measured in real time by measuring the photoelectric current of the detector during irradiation at a 137Cs irradiation facility. It is found that the light output of the LaBr3:Ce scintillator continues to decrease with the increase in dose. Permanent radiation damage in LaBr3:Ce is also observed at a cumulative dose of 100kGy.
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