Title of article :
Inhibition of contamination in cesium iodide
Author/Authors :
Kim، نويسنده , , Y.D. and Hahn، نويسنده , , I.S. and Hwang، نويسنده , , M.J. and Jin، نويسنده , , Li and Kang، نويسنده , , W.G. and Kim، نويسنده , , H.J. and Kim، نويسنده , , S.C and Kim، نويسنده , , S.K and Kim، نويسنده , , S.Y. and Kim، نويسنده , , T.Y. and Kwak، نويسنده , , J.W. and Kwon، نويسنده , , Y.J and Lee، نويسنده , , E.K. and Lee، نويسنده , , H.S and Lee، نويسنده , , J.I. and Lee، نويسنده , , J.Y. and Lee، نويسنده , , M.J. and Myung، نويسنده , , S.S. and Park، نويسنده , , H. and Schiedt، نويسنده , , Alexander Au-Yang، نويسنده , , H.Y. and Zhu، نويسنده , , J.J.، نويسنده ,
Pages :
7
From page :
456
To page :
462
Abstract :
We have extensively studied the mechanism of the Cs 137 and Cs 134 contamination in CsI compounds. The nuclei Cs 137 and Cs 134 in various samples have been studied using a HPGe detector at deep underground. The main source of the Cs 137 contamination in CsI powder was water dissolved Cs 137 used in the chemical process of cesium extraction at company side. We also found that Cs 134 was produced mainly from Cs 133 by neutron capture. We have successfully produced CsI powder containing no more than 2 mBq/kg of Cs 137 by using only ultra-pure water for whole extraction process from raw ore (pollucite).
Keywords :
WIMP , CSI , HPGe , water , Background , Cs 137 , Dark matter , RADIOACTIVITY
Journal title :
Astroparticle Physics
Record number :
2027354
Link To Document :
https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=2027354
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