Study of the internal background of CsI(Tℓ) crystal detectors for dark matter search
SCOPUS
- 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
- Date Issued
- 2003-03
- Publisher
- Elsevier BV
- Abstract
- A search for particle cold dark matter with CsI(T,l) 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. (C) 2003 Elsevier Science B.V. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/123929
- DOI
- 10.1016/s0168-9002(03)00346-2
- ISSN
- 0168-9002
- Article Type
- Article
- Citation
- Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 500, no. 1-3, page. 337 - 344, 2003-03
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