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Pulse-shape discrimination between electron and nuclear recoils in a NaI(Tl) crystal

Title
Pulse-shape discrimination between electron and nuclear recoils in a NaI(Tl) crystal
Authors
Lee, H. S.Adhikari, G.Adhikari, P.Choi, S.Hahn, I. S.Jeon, E. J.Joo, H. W.Kang, W. G.Kim, G. B.Kim, H. J.Kim, H. O.Kim, K. W.Kim, N. Y.Kim, S. K.Kim, Y. D.Kim, Y. H.Lee, J. H.Lee, M. H.Leonard, D. S.Li, J.Oh, S. Y.Olsen, S. L.Park, H. K.Park, H. S.Park, K. S.Shim, J. H.So, J. H.
Ewha Authors
한인식이현수
SCOPUS Author ID
한인식scopus; 이현수scopusscopus
Issue Date
2015
Journal Title
JOURNAL OF HIGH ENERGY PHYSICS
ISSN
1029-8479JCR Link
Citation
no. 8
Keywords
Dark Matter and Double Beta Decay
Publisher
SPRINGER
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We report on the response of a high light-output NaI(Tl) crystal to nuclear recoils induced by neutrons from an Am-Be source and compare the results with the response to electron recoils produced by Compton-scattered 662 keV gamma-rays from a Cs-137 source. The measured pulse-shape discrimination (PSI)) power of the NaI(Tl) crystal is found to be significantly improved because of the high light output of the NaI(Tl) detector. We quantify the PSI) power with a quality factor and estimate the sensitivity to the interaction rate for weakly interacting massive particles (WIIMPs) with nucleons, and the result is compared with the annual modulation amplitude observed by the DAMA/LIBRA experiment. The sensitivity to spin-independent WIMP-nucleon interactions based on 100 kg.year of data from NaI detectors is estimated with simulated experiments, using the standard halo model.
DOI
10.1007/JHEP08(2015)093
Appears in Collections:
사범대학 > 과학교육과 > Journal papers
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