Title of article
Study of the internal background of CsI(Tℓ) crystal detectors for dark matter search
Author/Authors
Kim، نويسنده , , T.Y and Cho، نويسنده , , I.S and Choi، نويسنده , , D.H. and CHOI، نويسنده , , J.M. and Hahn، نويسنده , , I.S and Hwang، نويسنده , , M.J. and Jang، نويسنده , , H.K and Jain، نويسنده , , R.K and Kang، نويسنده , , U.K and Kim، نويسنده , , H.J. and Kim، نويسنده , , J.H. and Kim، نويسنده , , S.C and Kim، نويسنده , , S.K and Kim، نويسنده , , S.Y. and Kim، نويسنده , , Y.D and Kwon، نويسنده , , Y.J and Lee، نويسنده , , H.S and Lee، نويسنده , , J.H and Lee، نويسنده , , M.H. and Lee، نويسنده , , Song-Se and Noh، نويسنده , , S.H and Park، نويسنده , , H and Park، نويسنده , , I.H and Seo، نويسنده , , E.S and Won، نويسنده , , E and Won، نويسنده , , H.S. and Yang، نويسنده , , H.Y. and Yang، نويسنده , , M.S and Yu، نويسنده , , I، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
8
From page
337
To page
344
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.
Keywords
Decay , CsI(T?) crystal , Dark matter , WIMP
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
2003
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2201302
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