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

Title
Production of low radioactivity CsI(Tl) crystals for WIMP searches
Authors
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.Schiedt A.Yang H.Y.Zhu J.J.
Ewha Authors
한인식
SCOPUS Author ID
한인식scopus
Issue Date
2005
Journal Title
AIP Conference Proceedings
ISSN
0094-243XJCR Link
Citation
vol. 785, pp. 93 - 99
Indexed
SCOPUS scopus
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). © 2005 American Institute of Physics.
DOI
10.1063/1.2060458
ISBN
0735402744; 9780735402744
Appears in Collections:
사범대학 > 과학교육과 > Journal papers
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