Determination of plutonium isotopes in seawater samples by Semiconductor Alpha Spectrometry, ICP-MS and AMS techniques

被引：0
|
作者：
S. H. Lee
P. P. Povinec
J. Gastaud
J. J. La Rosa
E. Wyse
L. K. Fifield
机构：
[1] Marine Environment Laboratory,International Atomic Energy Agency
[2] Korea Research Institute of Standards and Science,Faculty of Mathematics and Physics
[3] Comenius University,Ionizing Radiation Division
[4] National Institute of Standards and Technology,Department of Nuclear Physics
[5] New Brunswick Laboratory in Argonne,undefined
[6] Australian National University,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2009年 / 282卷
关键词：
Plutonium; Seawater; Semi Alpha Spectrometry; ICP-MS and AMS; Pu/; Pu atom ratio;
D O I：
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中图分类号：
学科分类号：
摘要：
Analysis of plutonium isotopes by Semiconductor Alpha Spectrometry (SAS), ICP-sector field mass spectrometry (ICP-MS) and Accelerator Mass Spectrometry (AMS) was carried out in seawater samples collected from the Northeast Atlantic Ocean (nuclear waste dumping sites) and Northwest Pacific Ocean. No particularly elevated levels of the atom ratios of 240Pu/239Pu compared to global fallout ratio (0.18) were found in the Northeast Atlantic Ocean seawater samples. The higher levels of atom ratios of 240Pu/239Pu were found in the Northwest Pacific Ocean. This is mainly due to contribution from the local fallout from nuclear weapon tests carried out at the Pacific Proving Grounds at the Marshall Islands.
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