Experimental study on gamma ray induced light output deterioration in LaBr3:Ce scintillator

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 foun...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 969; p. 164014
Main Authors: Lu, Yi, Song, Zhaohui, Li, Gang, Weng, Xiufeng, Yi, Yicheng, Yu, Xiaoren, Jiang, Haoyu, Cui, Zengqi, Hu, Yiwei, Zhang, Guohui
Format: Journal Article
Language:English
Published: Elsevier B.V 21.07.2020
Subjects:
Light output
Radiation damage
Scintillator
Scintillator
Radiation damage
Light output
ISSN:0168-9002, 1872-9576
Online Access:Get full text
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Summary: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.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2020.164014