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사범대학
과학교육과
Journal papers
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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
한인식
;
박일흥
SCOPUS Author ID
한인식
; 박일흥
Issue Date
2003
Journal Title
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ISSN
0168-9002
Citation
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment vol. 500, no. 1-3, pp. 337 - 344
Indexed
SCI; SCIE; SCOPUS
Document Type
Article
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
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