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Indra, Raj Pandey
지하실험 연구단
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A cryogenic setup for multifunctional characterization of luminescence and scintillation properties of single crystals

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Title
A cryogenic setup for multifunctional characterization of luminescence and scintillation properties of single crystals
Author(s)
Indra Raj Pandey; Jongkyu Cheon; D. Joseph Daniel; MinJeong Kim; Yeongduk Kim; Moo Hyun Lee; Hongjoo Kim
Subject
PBMOO4 CRYSTAL, ; TRAP CENTERS, ; THERMOLUMINESCENCE
Publication Date
2020-10
Journal
REVIEW OF SCIENTIFIC INSTRUMENTS, v.91, no.10, pp.103108
Publisher
AMER INST PHYSICS
Abstract
© 2020 Author(s). This article reports on a cryogenic setup that can be used for multifunctional experimental purposes. The temperature of the setup can be set from 10 K to 300 K. Different kinds of experiments were carried out in this experimental setup such as (1) luminescence emission, light yield, and decay time measurement under excitation of 266 nm laser and 280 nm LED sources, (2) thermoluminescence (TL) measurement under an x-ray excitation source, (3) scintillation property measurements such as light output, energy resolution, and decay time under 137Cs (662 keV γ-rays) and 241Am (5.4 MeV α) isotope sources, and (4) scintillation measurement under a 90Sr beta source through the continuous single-photon counting technique. The luminescence and scintillation properties of various molybdate and tungstate crystals such as CaMoO4, Na2Mo2O7, Pb2MoO5, CdWO4, and ZnWO4 are characterized and reported in the present work. The TL measurement of a CaMoO4 crystal is carried out from 10 K to 300 K, and various kinetic parameters such as order of kinetics, frequency factor, activation energy, and figure of merit are calculated for different TL peaks. As the temperature goes down from room to 10 K, the light yield of all studied crystals increases. Since the light yield of the crystal increases as temperature decreases toward 10 K, this experimental setup can be used for the characterization of luminescence and scintillation properties of a single crystal for rare event searches such as neutrinoless double-beta decay and dark matter
URI
https://pr.ibs.re.kr/handle/8788114/7588
DOI
10.1063/5.0016175
ISSN
0034-6748
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > 1. Journal Papers (저널논문)
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