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Simulations of background sources in AMoRE-I experiment

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Title
Simulations of background sources in AMoRE-I experiment
Author(s)
A. Luqman; D.H. Ha; J.J. Lee; E.J. Jeon; H.S. Jo; H.J. Kim; Y.D. Kim; Y.H. Kim; V.V. Kobychev; H.S. Lee; H.K. Park; K. Siyeon; J.H. So; V.I. Tretyak; Y.S. Yoon
Publication Date
2017-05
Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, v.855, no., pp.140 - 147
Publisher
ELSEVIER SCIENCE BV
Abstract
The first phase of the Advanced Mo-based Rare process Experiment (AMoRE-I), an experimental search for neutrinoless double beta decay (0νββ) of 100Mo in calcium molybdate (40Ca100MoO4) crystal using cryogenic detection techniques, is in preparation at the YangYang underground laboratory (Y2L) in Korea. A GEANT4 based Monte Carlo simulation was performed for the first-phase AMoRE detector and shield configuration. Background sources such as 238U, 232Th, 235U, and 210Pb from inside the crystals, surrounding materials, outer shielding walls of the Y2L cavity were simulated. The estimated background rate in the region of interest was estimated to be <1.5×10−3counts/keV/kg/yr (ckky). The effects of random coincidences between backgrounds and two-neutrino double beta decays of 100Mo as a potential background source were estimated to be <2.3×10−4ckky. © 2017 Elsevier B.V
URI
https://pr.ibs.re.kr/handle/8788114/4214
ISSN
0168-9002
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > Journal Papers (저널논문)
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