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Title: Application of the 226Ra– 230Th– 234U and 227Ac– 231Pa– 235U radiochronometers to uranium certified reference materials

Uranium certified reference materials (CRM) issued by New Brunswick Laboratory were subjected to dating using four independent uranium-series radiochronometers. In all cases, there was acceptable agreement between the model ages calculated using the 231Pa– 235U, 230Th– 234U, 227Ac– 235U or 226Ra– 234U radiochronometers and either the certified 230Th– 234U model date (CRM 125-A and CRM U630), or the known purification date (CRM U050 and CRM U100). Finally, the agreement between the four independent radiochronometers establishes these uranium certified reference materials as ideal informal standards for validating dating techniques utilized in nuclear forensic investigations in the absence of standards with certified model ages for multiple radiochronometers.
Authors:
ORCiD logo [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Nuclear and Chemical Sciences Division. Physical and Life Sciences Directorate
Publication Date:
Report Number(s):
LLNL-JRNL-737009
Journal ID: ISSN 0236-5731; TRN: US1801901
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 314; Journal Issue: 3; Journal ID: ISSN 0236-5731
Publisher:
Springer
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE; Dept. of Homeland Security (DHS) (United States)
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; U-series radiochronometry; nuclear forensics; age-dating; 226Ra; 227Ac
OSTI Identifier:
1424080

Rolison, John M., Treinen, Kerri C., McHugh, Kelly C., Gaffney, Amy M., and Williams, Ross W.. Application of the 226Ra–230Th–234U and 227Ac–231Pa–235U radiochronometers to uranium certified reference materials. United States: N. p., Web. doi:10.1007/s10967-017-5619-x.
Rolison, John M., Treinen, Kerri C., McHugh, Kelly C., Gaffney, Amy M., & Williams, Ross W.. Application of the 226Ra–230Th–234U and 227Ac–231Pa–235U radiochronometers to uranium certified reference materials. United States. doi:10.1007/s10967-017-5619-x.
Rolison, John M., Treinen, Kerri C., McHugh, Kelly C., Gaffney, Amy M., and Williams, Ross W.. 2017. "Application of the 226Ra–230Th–234U and 227Ac–231Pa–235U radiochronometers to uranium certified reference materials". United States. doi:10.1007/s10967-017-5619-x. https://www.osti.gov/servlets/purl/1424080.
@article{osti_1424080,
title = {Application of the 226Ra–230Th–234U and 227Ac–231Pa–235U radiochronometers to uranium certified reference materials},
author = {Rolison, John M. and Treinen, Kerri C. and McHugh, Kelly C. and Gaffney, Amy M. and Williams, Ross W.},
abstractNote = {Uranium certified reference materials (CRM) issued by New Brunswick Laboratory were subjected to dating using four independent uranium-series radiochronometers. In all cases, there was acceptable agreement between the model ages calculated using the 231Pa–235U, 230Th–234U, 227Ac–235U or 226Ra–234U radiochronometers and either the certified 230Th–234U model date (CRM 125-A and CRM U630), or the known purification date (CRM U050 and CRM U100). Finally, the agreement between the four independent radiochronometers establishes these uranium certified reference materials as ideal informal standards for validating dating techniques utilized in nuclear forensic investigations in the absence of standards with certified model ages for multiple radiochronometers.},
doi = {10.1007/s10967-017-5619-x},
journal = {Journal of Radioanalytical and Nuclear Chemistry},
number = 3,
volume = 314,
place = {United States},
year = {2017},
month = {11}
}