Measurement of absolute light yield and quantum efficiency of LaBr 3 :Ce scintillator detector using SiPM

This brief communication presents our work to determine the absolute light yield and quantum efficiency of LaBr 3 :Ce scintillator by comparison and also by direct pulse measurement method using SiPM. The first part presents use of the simpler comparison method to determine the light yields of diffe...

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Bibliographic Details
Published in:Journal of instrumentation 2021-12, Vol.16 (12), p.P12024
Main Authors: Sariyal, R., Mazumdar, I., Patel, S.M.
Format: Article
Language:English
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Summary:This brief communication presents our work to determine the absolute light yield and quantum efficiency of LaBr 3 :Ce scintillator by comparison and also by direct pulse measurement method using SiPM. The first part presents use of the simpler comparison method to determine the light yields of different scintillators using the known yield of NaI(Tl) as reference. In the second part we have determined the absolute light yield and quantum efficiency of LaBr 3 :Ce crystal by using a SiPM photo detector. Our measured value is in good agreement with the light yield reported by previous measurements using PMT and excitation fluorescence spectroscopy. Quantum efficiencies for scintillation detectors have been determined by using both PMTs and photo detectors, namely APDs by previous authors. This communication is possibly the first report on the determination of quantum efficiency of LaBr 3 :Ce using SiPM photo detector. The simple and effective method presented here would allow to determine the light yield of any scintillation detector.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/16/12/P12024