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Lee, Moo Hyun
지하실험 연구단
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Pbmoo4 synthesis from ancient lead and its single crystal growth for neutrinoless double beta decay search

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Title
Pbmoo4 synthesis from ancient lead and its single crystal growth for neutrinoless double beta decay search
Author(s)
Arshad Khan; Pabitra Aryal; Hongjoo Kim; Moo Hyun Lee; Yeongduk Kim
Subject
Ancient Pb, ; Scintillation, ; Single crystal growth, ; Synthesis, ; Thermally stimulated luminescence
Publication Date
2020-03
Journal
CRYSTALS, v.10, no.3, pp.150
Publisher
MDPI
Abstract
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. A powder synthesis of PbMoO4 (PMO) from ancient lead (Pb) and deeply purified commercial MoO3 powders was performed using a wet chemistry technique to achieve the low radioactivity scintillator for neutrinoless double beta decay search in100Mo. The synthesized powders were used to grow single crystals of PbMoO4 by the Czochralski technique in an Ar environment. The luminescence and scintillation properties were measured with excitations using UV, X-and γ-rays in the temperature range of 10–300 K. Annealing of the grown PMO crystal in an air atmosphere significantly enhanced the scintillation light yield compared to that measured before annealing. The scintillation light yield of grown PMO crystal at 10 K was found to be 127% to that of a reference PMO crystal under 662 keV γ-rays excitation from a137Cs source. The background measurement of the grown crystal performed at 50 K shows a lower internal activity from210Pb compared to that of reference PMO (grown from modern Pb) crystal. These preliminary performances show that the PMO crystal grown from ancient Pb and deeply purified MoO3 powders has a great potential to be used as a cryogenic scintillator for the neutrinoless double beta decay search in100Mo
URI
https://pr.ibs.re.kr/handle/8788114/8338
DOI
10.3390/cryst10030150
ISSN
2073-4352
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > 1. Journal Papers (저널논문)
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