Production of low radioactivity CsI(Tl) crystals for WIMP searches

Y. D. Kim; I. S. Hahn; M. J. Hwang; Li Jin; W. G. Kang; H. J. Kim; S. C. Kim; S. K. Kim; S. Y. Kim; T. Y. Kim; J. W. Kwak; Y. J. Kwon; E. K. Lee; H. S. Lee; J. I. Lee; J. Y. Lee; M. J. Lee; S. S. Myung; H. Park; Alexander Schiedt; H. Y. Yang; J. J. Zhu

doi:10.1063/1.2060458

Production of low radioactivity CsI(Tl) crystals for WIMP searches

Y. D. Kim, I. S. Hahn, M. J. Hwang, Li Jin, W. G. Kang, H. J. Kim, S. C. Kim, S. K. Kim, S. Y. Kim, T. Y. Kim, J. W. Kwak, Y. J. Kwon, E. K. Lee, H. S. Lee, J. I. Lee, J. Y. Lee, M. J. Lee, S. S. Myung, H. Park, Alexander SchiedtH. Y. Yang, J. J. Zhu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

We have extensively studied the mechanism of the ¹³⁷Cs and ¹³⁴Cs contamination in CsI compounds. The nuclei ¹³⁷Cs and ¹³⁴Cs in various samples have been studied using a HPGe detector at deep underground. The main source of the ¹³⁷Cs contamination in CsI powder was desolved ¹³⁷Cs in the water used in the chemical process of cesium extraction at company side. We also found that ¹³⁴Cs was produced mainly from ¹³³Cs by neutron capture. We have successfully produced CsI powder containing no more than 2 mBq/kg of ¹³⁷Cs by using only ultra-pure water for whole extraction process from raw ore(pollucite).

Original language	English
Title of host publication	TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES
Subtitle of host publication	LRT 2004
Pages	93-99
Number of pages	7
DOIs	https://doi.org/10.1063/1.2060458
State	Published - 8 Sep 2005
Event	TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES: LRT 2004 - Sudbury, Ontario, Canada Duration: 12 Dec 2004 → 14 Dec 2004

Publication series

Name	AIP Conference Proceedings
Volume	785
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES: LRT 2004
Country/Territory	Canada
City	Sudbury, Ontario
Period	12/12/04 → 14/12/04

Keywords

Cs
Background
CsI
Dark Matter
HPGe
Radioactivity
Water
WIMP

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10.1063/1.2060458

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Kim, Y. D., Hahn, I. S., Hwang, M. J., Jin, L., Kang, W. G., Kim, H. J., Kim, S. C., Kim, S. K., Kim, S. Y., Kim, T. Y., Kwak, J. W., Kwon, Y. J., Lee, E. K., Lee, H. S., Lee, J. I., Lee, J. Y., Lee, M. J., Myung, S. S., Park, H., ... Zhu, J. J. (2005). Production of low radioactivity CsI(Tl) crystals for WIMP searches. In TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES: LRT 2004 (pp. 93-99). (AIP Conference Proceedings; Vol. 785). https://doi.org/10.1063/1.2060458

@inproceedings{17cde073a32b4bb7a656e05a461c8589,

title = "Production of low radioactivity CsI(Tl) crystals for WIMP searches",

abstract = "We have extensively studied the mechanism of the 137Cs and 134Cs contamination in CsI compounds. The nuclei 137Cs and 134Cs in various samples have been studied using a HPGe detector at deep underground. The main source of the 137Cs contamination in CsI powder was desolved 137Cs in the water used in the chemical process of cesium extraction at company side. We also found that 134Cs was produced mainly from 133Cs by neutron capture. We have successfully produced CsI powder containing no more than 2 mBq/kg of 137Cs by using only ultra-pure water for whole extraction process from raw ore(pollucite).",

keywords = "Cs, Background, CsI, Dark Matter, HPGe, Radioactivity, Water, WIMP",

author = "Kim, {Y. D.} and Hahn, {I. S.} and Hwang, {M. J.} and Li Jin and Kang, {W. G.} and Kim, {H. J.} and Kim, {S. C.} and Kim, {S. K.} and Kim, {S. Y.} and Kim, {T. Y.} and Kwak, {J. W.} and Kwon, {Y. J.} and Lee, {E. K.} and Lee, {H. S.} and Lee, {J. I.} and Lee, {J. Y.} and Lee, {M. J.} and Myung, {S. S.} and H. Park and Alexander Schiedt and Yang, {H. Y.} and Zhu, {J. J.}",

year = "2005",

month = sep,

day = "8",

doi = "10.1063/1.2060458",

language = "English",

isbn = "0735402744",

series = "AIP Conference Proceedings",

pages = "93--99",

booktitle = "TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES",

note = "TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES: LRT 2004 ; Conference date: 12-12-2004 Through 14-12-2004",

}

Kim, YD, Hahn, IS, Hwang, MJ, Jin, L, Kang, WG, Kim, HJ, Kim, SC, Kim, SK, Kim, SY, Kim, TY, Kwak, JW, Kwon, YJ, Lee, EK, Lee, HS, Lee, JI, Lee, JY, Lee, MJ, Myung, SS, Park, H, Schiedt, A, Yang, HY & Zhu, JJ 2005, Production of low radioactivity CsI(Tl) crystals for WIMP searches. in TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES: LRT 2004. AIP Conference Proceedings, vol. 785, pp. 93-99, TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES: LRT 2004, Sudbury, Ontario, Canada, 12/12/04. https://doi.org/10.1063/1.2060458

TY - GEN

T1 - Production of low radioactivity CsI(Tl) crystals for WIMP searches

AU - Kim, Y. D.

AU - Hahn, I. S.

AU - Hwang, M. J.

AU - Jin, Li

AU - Kang, W. G.

AU - Kim, H. J.

AU - Kim, S. C.

AU - Kim, S. K.

AU - Kim, S. Y.

AU - Kim, T. Y.

AU - Kwak, J. W.

AU - Kwon, Y. J.

AU - Lee, E. K.

AU - Lee, H. S.

AU - Lee, J. I.

AU - Lee, J. Y.

AU - Lee, M. J.

AU - Myung, S. S.

AU - Park, H.

AU - Schiedt, Alexander

AU - Yang, H. Y.

AU - Zhu, J. J.

PY - 2005/9/8

Y1 - 2005/9/8

N2 - We have extensively studied the mechanism of the 137Cs and 134Cs contamination in CsI compounds. The nuclei 137Cs and 134Cs in various samples have been studied using a HPGe detector at deep underground. The main source of the 137Cs contamination in CsI powder was desolved 137Cs in the water used in the chemical process of cesium extraction at company side. We also found that 134Cs was produced mainly from 133Cs by neutron capture. We have successfully produced CsI powder containing no more than 2 mBq/kg of 137Cs by using only ultra-pure water for whole extraction process from raw ore(pollucite).

AB - We have extensively studied the mechanism of the 137Cs and 134Cs contamination in CsI compounds. The nuclei 137Cs and 134Cs in various samples have been studied using a HPGe detector at deep underground. The main source of the 137Cs contamination in CsI powder was desolved 137Cs in the water used in the chemical process of cesium extraction at company side. We also found that 134Cs was produced mainly from 133Cs by neutron capture. We have successfully produced CsI powder containing no more than 2 mBq/kg of 137Cs by using only ultra-pure water for whole extraction process from raw ore(pollucite).

KW - Cs

KW - Background

KW - CsI

KW - Dark Matter

KW - HPGe

KW - Radioactivity

KW - Water

KW - WIMP

UR - http://www.scopus.com/inward/record.url?scp=33749555330&partnerID=8YFLogxK

U2 - 10.1063/1.2060458

DO - 10.1063/1.2060458

M3 - Conference contribution

AN - SCOPUS:33749555330

SN - 0735402744

SN - 9780735402744

T3 - AIP Conference Proceedings

SP - 93

EP - 99

BT - TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES

T2 - TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES: LRT 2004

Y2 - 12 December 2004 through 14 December 2004

ER -

Production of low radioactivity CsI(Tl) crystals for WIMP searches

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Keywords

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