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.
| Original language | English |
|---|---|
| Pages (from-to) | 337-344 |
| Number of pages | 8 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 500 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 2003 Nov 3 |
| Externally published | Yes |
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Keywords
- CsI(Tℓ) crystal
- Dark matter
- Decay
- WIMP
ASJC Scopus subject areas
- Instrumentation
- Nuclear and High Energy Physics
Cite this
Study of the internal background of CsI(Tℓ) crystal detectors for dark matter search. / 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, Eunil; Won, H. S.; Yang, H. Y.; Yang, M. S.; Yu, I.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 500, No. 1-3, 03.11.2003, p. 337-344.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Study of the internal background of CsI(Tℓ) crystal detectors for dark matter search
AU - Kim, T. Y.
AU - Cho, I. S.
AU - Choi, D. H.
AU - Choi, J. M.
AU - Hahn, I. S.
AU - Hwang, M. J.
AU - Jang, H. K.
AU - Jain, R. K.
AU - Kang, U. K.
AU - Kim, H. J.
AU - Kim, J. H.
AU - Kim, S. C.
AU - Kim, S. K.
AU - Kim, S. Y.
AU - Kim, Y. D.
AU - Kwon, Y. J.
AU - Lee, H. S.
AU - Lee, J. H.
AU - Lee, M. H.
AU - Lee, S. E.
AU - Noh, S. H.
AU - Park, H.
AU - Park, I. H.
AU - Seo, E. S.
AU - Won, Eunil
AU - Won, H. S.
AU - Yang, H. Y.
AU - Yang, M. S.
AU - Yu, I.
PY - 2003/11/3
Y1 - 2003/11/3
N2 - 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.
AB - 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.
KW - CsI(Tℓ) crystal
KW - Dark matter
KW - Decay
KW - WIMP
UR - http://www.scopus.com/inward/record.url?scp=0037821756&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037821756&partnerID=8YFLogxK
U2 - 10.1016/S0168-9002(03)00346-2
DO - 10.1016/S0168-9002(03)00346-2
M3 - Article
VL - 500
SP - 337
EP - 344
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
IS - 1-3
ER -