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Lee, Moo Hyun
지하실험 연구단
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AMoRE: a search for neutrinoless double-beta decay of Mo-100 using low-temperature molybdenum-containing crystal detectors

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Title
AMoRE: a search for neutrinoless double-beta decay of Mo-100 using low-temperature molybdenum-containing crystal detectors
Author(s)
Moo Hyun Lee
Subject
Calorimeters, ; Cryogenic detectors, ; Double-beta decay detectors, ; Gamma detectors (scintillators, CZT, HPGe, HgI etc)
Publication Date
2020-08
Journal
JOURNAL OF INSTRUMENTATION, v.15, no.8, pp.C08010
Publisher
IOP PUBLISHING LTD
Abstract
© 2020 IOP Publishing Ltd and Sissa Medialab. The AMoRE is an experiment to search for neutrinoless double-beta decay of 100 Mo in molybdate crystal scintillators using a cryogenic detection technique. The crystals are equipped with metallic magnetic calorimeter (MMC) sensors that detect both phonon and photon signals at temperatures of a few tens of mK. Simultaneous measurements of thermal and scintillation signals produced by particle interactions in the crystals by MMC sensors provide high energy resolution and efficient particle discrimination. AMoRE-Pilot, an R&D phase with six (CaMoO4)-Ca-48depl-Mo-100 crystals and a total mass of similar to 1.9 kg in the final configuration, operated at the 700 m deep Yangyang underground laboratory (Y2L). After completion of the AMoRE-Pilot run at the end of 2018, AMoRE-I with a similar to 6 kg crystal array comprised of thirteen (CaMoO4)-Ca-48depl-Mo-100 and five (Li2MoO4)-Mo-100 crystals is currently being assembled and installed at Y2L. We have secured 110 kg of Mo-100-isotope-enriched MoO3 powder for the production of crystals for the AMoRE-II phase, which will have similar to 200 kg of molybdate crystals and operate at Yemilab, a new underground laboratory located similar to 1, 100 m deep in the Handeok iron mine that is currently being excavated and with a scheduled completion date of December 2020. AMoRE-II is expected to improve the upper limit on the effective Majorana neutrino mass to cover the entire inverted hierarchy neutrino mass region: 20-50 meV, in the case when no such decays are observed. Results from AMoRE-Pilot and progress of the preparations for AMoRE-I and AMoRE-II are presented
URI
https://pr.ibs.re.kr/handle/8788114/7698
DOI
10.1088/1748-0221/15/08/C08010
ISSN
1748-0221
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > 1. Journal Papers (저널논문)
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