Production of low radioactivity CsI(Tl) crystals for WIMP searches
Journal Article
·
· AIP Conference Proceedings
- Department of Physics, Sejong University, Seoul, 143-747 (Korea, Republic of)
- Department of Science Education, Ewha Woman's University, Seoul 120-750 (Korea, Republic of)
- Physics Department, Yonsei University, Seoul 120-749 (Korea, Republic of)
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100039 (China)
- Physics Department, Kyungpook National University, Daegu, 702-701 (Korea, Republic of)
- School of Physics, Seoul National University, Seoul, 151-742 (Korea, Republic of) and DMRC, Seoul National University, Seoul, 151-742 (Korea, Republic of)
- Division of Chemical Metrology and Materials Evaluation, Korea Research Institute of Standards and Science, Yuseong, Daejeon, 305-600 (Korea, Republic of); and others
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)
- OSTI ID:
- 20719252
- Journal Information:
- AIP Conference Proceedings, Vol. 785, Issue 1; Conference: LRT 2004: Topical workshop on low radioactivity techniques, Sudbury, ON (Canada), 12-14 Dec 2004; Other Information: DOI: 10.1063/1.2060458; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development of low background CsI(Tl) and NaI(Tl) crystals for WIMP search
Determination of Transmutation Effects in Crystalline Waste Forms
CHEMICAL TECHNOLOGY DIVISION, CHEMICAL DEVELOPMENT SECTION C, PROGRESS REPORT ON SEPARATIONS CHEMISTRY AND SEPARATIONS PROGRESS RESEARCH FOR JANUARY-JUNE 1963
Journal Article
·
Mon Aug 17 00:00:00 EDT 2015
· AIP Conference Proceedings
·
OSTI ID:20719252
Determination of Transmutation Effects in Crystalline Waste Forms
Technical Report
·
Fri Dec 31 00:00:00 EST 1999
·
OSTI ID:20719252
CHEMICAL TECHNOLOGY DIVISION, CHEMICAL DEVELOPMENT SECTION C, PROGRESS REPORT ON SEPARATIONS CHEMISTRY AND SEPARATIONS PROGRESS RESEARCH FOR JANUARY-JUNE 1963
Technical Report
·
Fri Oct 25 00:00:00 EDT 1963
·
OSTI ID:20719252