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Title: Nd and Sm isotopic composition of spent nuclear fuels from three material test reactors

Rare earth elements such as neodymium and samarium are ideal for probing the neutron environment that spent nuclear fuels are exposed to in nuclear reactors. The large number of stable isotopes can provide distinct isotopic signatures for differentiating the source material for nuclear forensic investigations. The rare-earth elements were isolated from the high activity fuel matrix via ion exchange chromatography in a shielded cell. The individual elements were then separated using cation exchange chromatography. In conclusion, the neodymium and samarium aliquots were analyzed via MC–ICP–MS, resulting in isotopic compositions with a precision of 0.01–0.3%.
Authors:
ORCiD logo [1] ;  [2] ;  [3] ;  [3] ;  [1] ;  [1] ;  [4]
  1. Univ. of Maryland, College Park, MD (United States)
  2. Savannah River National Lab., Aiken, SC (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Savannah River National Lab., Aiken, SC (United States)
  4. Savannah River National Lab., Aiken, SC (United States); DM Beals LLC, Palm Coast, FL (United States)
Publication Date:
Report Number(s):
SRNL-L2200-2016-00029
Journal ID: ISSN 0236-5731; PII: 5099
Grant/Contract Number:
AC09-08SR22470
Type:
Accepted Manuscript
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 311; Journal Issue: 1; Journal ID: ISSN 0236-5731
Publisher:
Springer
Research Org:
Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Multi-collector inductively-coupled plasma mass spectrometry; Spent nuclear fuel; Chromatography; Nd and Sm isotopic ratios; Nuclear forensics
OSTI Identifier:
1419837