gamma-Spectrometry;
Lead shield;
Pb-210;
Bi-210;
Bremsstrahlung;
D O I:
10.1016/j.nimb.2011.11.020
中图分类号:
TH7 [仪器、仪表];
学科分类号:
0804 ;
080401 ;
081102 ;
摘要:
A method for the determination of the Pb-210 activity by HPGe spectrometry is proposed, consisting of measuring the bremsstrahlung generated in a sample by Bi-210 beta-emission (1.16 MeV). The detection efficiency is evaluated by GEANT3 simulation and is compared with experiment. A detection limit of 600 mBq was obtained. This technique has been used to select low background detector materials and lead shielding. (C) 2011 Elsevier B.V. All rights reserved.
机构:
East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200241, Peoples R ChinaEast China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200241, Peoples R China
Zhong, Qiangqiang
Puigcorbe, Viena
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机构:
Edith Cowan Univ, Ctr Marine Ecosyst Res, Sch Sci, Joondalup, WA 6027, AustraliaEast China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200241, Peoples R China
Puigcorbe, Viena
Sanders, Christian
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机构:
Southern Cross Univ, Natl Marine Sci Ctr, Coffs Harbour, NSW, AustraliaEast China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200241, Peoples R China
Sanders, Christian
Du, Jinzhou
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机构:
East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200241, Peoples R ChinaEast China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200241, Peoples R China
机构:
Univ Liverpool, Dept Math Sci, Environm Radioact Res Ctr, Liverpool L69 3BX, Merseyside, EnglandUniv Liverpool, Dept Math Sci, Environm Radioact Res Ctr, Liverpool L69 3BX, Merseyside, England
Semertzidou, P.
Piliposian, G. T.
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机构:
Univ Liverpool, Dept Math Sci, Environm Radioact Res Ctr, Liverpool L69 3BX, Merseyside, EnglandUniv Liverpool, Dept Math Sci, Environm Radioact Res Ctr, Liverpool L69 3BX, Merseyside, England
Piliposian, G. T.
Appleby, P. G.
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Univ Liverpool, Dept Math Sci, Environm Radioact Res Ctr, Liverpool L69 3BX, Merseyside, EnglandUniv Liverpool, Dept Math Sci, Environm Radioact Res Ctr, Liverpool L69 3BX, Merseyside, England