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

T. Y. Kim, I. S. Cho, D. H. Choi, J. M. Choi, I. S. Hahn, M. J. Hwang, H. K. Jang, R. K. Jain, U. K. Kang, H. J. Kim, J. H. Kim, S. C. Kim, S. K. Kim, S. Y. Kim, Y. D. Kim, Y. J. Kwon, H. S. Lee, J. H. Lee, M. H. Lee, S. E. Lee & 9 others S. H. Noh, H. Park, I. H. Park, E. S. Seo, Eunil Won, H. S. Won, H. Y. Yang, M. S. Yang, I. Yu

Research output: Contribution to journalArticle

35 Citations (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.

Original languageEnglish
Pages (from-to)337-344
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume500
Issue number1-3
DOIs
Publication statusPublished - 2003 Nov 3
Externally publishedYes

Fingerprint

dark matter
Detectors
Crystals
detectors
Radioisotopes
crystals
weakly interacting massive particles
Korea
Cesium
cesium
radioactive isotopes
contamination
Contamination
prototypes
simulation
energy

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 journalArticle

Kim, TY, Cho, IS, Choi, DH, Choi, JM, Hahn, IS, Hwang, MJ, Jang, HK, Jain, RK, Kang, UK, Kim, HJ, Kim, JH, Kim, SC, Kim, SK, Kim, SY, Kim, YD, Kwon, YJ, Lee, HS, Lee, JH, Lee, MH, Lee, SE, Noh, SH, Park, H, Park, IH, Seo, ES, Won, E, Won, HS, Yang, HY, Yang, MS & Yu, I 2003, 'Study of the internal background of CsI(Tℓ) crystal detectors for dark matter search', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 500, no. 1-3, pp. 337-344. https://doi.org/10.1016/S0168-9002(03)00346-2
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. / Study of the internal background of CsI(Tℓ) crystal detectors for dark matter search. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2003 ; Vol. 500, No. 1-3. pp. 337-344.
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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.

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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.

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KW - Decay

KW - WIMP

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