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지하실험 연구단
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Development of a scintillation light detector for a cryogenic rare-event-search experiment

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Title
Development of a scintillation light detector for a cryogenic rare-event-search experiment
Author(s)
H. J. Lee; J.H. So; C.S. Kang; G.B. Kim; S.R. Kim; J.H. Lee; Lee, MK; W. S. Yoon; Y.H. Kim
Publication Date
2015-06
Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, v.784, no., pp.508 - 512
Publisher
ELSEVIER SCIENCE BV
Abstract
We developed a light detector to measure scintillation light from a crystal utilized in heat and light measurements at low temperatures for a rare-event-search experiment. A 2-in. Ge wafer was used as the light absorber, while a metallic magnetic calorimeter was employed to read out the temperature increase of the absorber. The light detector was tested at 25-100 mK using a cryogen-free adiabatic demagnetization refrigerator. The performance in terms of energy resolution, rise time and signal amplitude was measured using radioactive sources with a consideration of the absorption position on the wafer. The light detector was used to measure the scintillation light of a CaMoO4 crystal at mK temperatures. We also discuss for the potential application of this detector in a neutrinoless double-beta decay experiment. (C) 2014 Elsevier B.V. All rights reserved
URI
https://pr.ibs.re.kr/handle/8788114/1700
ISSN
0168-9002
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > Journal Papers (저널논문)
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