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Dark matter search experiment with Csl(TI) crystal

Title
Dark matter search experiment with Csl(TI) crystal
Authors
Kim, YDKim, TYChoi, DHChoi, JMHahn, ISHwang, MJJain, RKKang, WGKim, HJKim, SCKim, SKKwon, YJLee, EKLee, HSLee, JHLee, JILee, MHLee, SELim, DSNoh, SHPark, HPark, IHSeo, ESWon, EYang, HYYang, MSYu, IZhu, J
Ewha Authors
한인식박일흥
SCOPUS Author ID
한인식scopus
Issue Date
2003
Journal Title
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
ISSN
0374-4884JCR Link
Citation
vol. 43, pp. S40 - S44
Keywords
dark matterCsl(TI)radioactivityHPGebackgroundCs-137
Publisher
KOREAN PHYSICAL SOC
Indexed
SCI; SCIE; SCOPUS; KCI WOS
Abstract
We are preparing an experiment for dark matter (WIMP) search using CsI(Tl) crystal. The detection threshold of a large CsI(Tl) crystal coupled with green extended PMTs was down to 2 keV, and the pulse shape discrimination power of the crystal shows better separation of nuclear recoil from background electron signals than NaI(Tl). With these characteristics, CsI(Tl) is another good material for WIMP search experiment. The disadvantage of CsI(Tl) is the internal background from cesium and rubicium ratioisotopes. In this report, the measurements and reduction of these ratioisotopes are described, and a perspective for the experiment is presented.
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사범대학 > 과학교육과 > Journal papers
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