Basic characterization of U: Determination of age and U content using sector field ICP-MS, gamma spectrometry and alpha spectrometry期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Basic characterization of U: Determination of age and U content using sector field ICP-MS, gamma spectrometry and alpha spectrometry

Authors:	H Ramebäck U Nygren A Verbruggen G Skarnemark

Affiliation:	^a Swedish Defence Research Agency (FOI), Division of CBRN Defence and Security, SE-901 82 Umeå, Sweden ^b Institute for Reference Materials and Measurements, EC-JRC-IRMM, B-2440 Geel, Belgium ^c Chalmers University of Technology, Department of Chemical and Biological Engineering, Nuclear Chemistry, SE-412 96 Göteborg, Sweden

Abstract:	The possibility to determine the age, i.e. the time since the last chemical separation, of ²³³U was studied using two fundamentally different measurement techniques: inductively coupled plasma mass spectrometry (ICP-MS) and gamma spectrometry. Moreover, the isotope ratio ²³²U/²³³U was measured using both alpha spectrometry and gamma spectrometry. For the two materials analysed, all measurement results were in agreement, i.e. consistent within the combined uncertainties. One of the materials was also measured using gamma spectrometry under field conditions. This measurement was also in agreement with the other results on this material.

Keywords:	FMCT ²³³U Age determination Nuclear forensics Mass spectrometry Gamma spectrometry
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