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Pulse Shape Discrimination of Nuclear Recoil and Electron Recoil Events With a NaI(Tl) Crystal for Dark Matter Search

Title
Pulse Shape Discrimination of Nuclear Recoil and Electron Recoil Events With a NaI(Tl) Crystal for Dark Matter Search
Authors
Kim, K. W.Adhikari, G.Adhikari, P.Choi, S.Ha, C.Hahn, I. S.Jeon, E. J.Joo, H. W.Kang, W. G.Kim, H. J.Kim, N. Y.Kim, S. K.Kim, Y. D.Kim, Y. H.Lee, H. S.Lee, M. H.Leonard, D. S.Oh, S. Y.Olsen, S. L.Park, H. K.Park, H. S.Park, K. S.Shim, J. H.So, J. H.Yoon, Y. S.
Ewha Authors
한인식
SCOPUS Author ID
한인식scopus
Issue Date
2016
Journal Title
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
ISSN
0018-9499JCR Link1558-1578JCR Link
Citation
vol. 63, no. 2, pp. 534 - 538
Keywords
KIMSNaI(Tl) crystalpulse shape discriminationWIMP
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
In order to investigate discrimination between nuclear recoil and electron recoil events for the KIMS-NaI dark matter search experiment, we measured the pulse shapes produced by neutrons and gamma rays in a NaI(Tl) crystal. Relatively good pulse shape discrimination (PSD) power due to high light output of recently developed crystals makes it possible to test whether the annual modulation signal observed by the DAMA/LIBRA experiment is caused by nuclear recoil events. We applied the PSD to underground data taken with a 9.15 kg low-background and high-light-output NaI(Tl) crystal for 134 days. Good agreement between underground data and electron recoil events was observed.
DOI
10.1109/TNS.2016.2525765
Appears in Collections:
사범대학 > 과학교육과 > Journal papers
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