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Study of the internal background of CsI(Tℓ) crystal detectors for dark matter search

Title
Study of the internal background of CsI(Tℓ) crystal detectors for dark matter search
Authors
Kim T.Y.Cho I.S.Choi D.H.Choi J.M.Hahn I.S.Hwang M.J.Jang H.K.Jain R.K.Kang U.K.Kim H.J.Kim J.H.Kim S.C.Kim S.K.Kim S.Y.Kim Y.D.Kwon Y.J.Lee H.S.Lee J.H.Lee M.H.Lee S.E.Noh S.H.Park H.Park I.H.Seo E.S.Won E.Won H.S.Yang H.Y.Yang M.S.Yu I.
Ewha Authors
한인식박일흥
SCOPUS Author ID
한인식scopus
Issue Date
2003
Journal Title
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ISSN
0168-9002JCR Link
Citation
vol. 500, no. 1-3, pp. 337 - 344
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
A search for particle cold dark matter with CsI(Tℓ) crystal is being prepared at the Cheong-Pyeong underground laboratory in Korea. The background spectra of CsI(Tℓ) crystal detectors in a prototype shield were obtained. The lowest background count rate of the test sample of crystals is measured to be 64.7±5.1 counts/keV/kg/day in the energy range of 5-20 keV. Quantitative estimation of residual radioactive isotope in CsI(Tℓ) was made using the GEANT4 Monte Carlo simulation. Analysis results show that CsI(Tℓ) crystal could be a good candidate for direct detection of WIMPs when the contamination level of cesium radioisotopes is reduced to under a few mBq/kg. © 2003 Elsevier Science B.V. All rights reserved.
DOI
10.1016/S0168-9002(03)00346-2
Appears in Collections:
사범대학 > 과학교육과 > Journal papers
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