Application of the 226Ra–230Th–234U and 227Ac–231Pa–235U radiochronometers to uranium certified reference materials
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DOI: 10.1007/s10967-017-5619-x
Abstract: 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,… read more here.
Keywords: reference materials; 230th 234u; certified reference; 231pa 235u ... See more keywords
Application of the 226Ra–230Th–234U and 227Ac–231Pa–235U radiochronometers to UF6 cylinders
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Radioanalytical and Nuclear Chemistry"
DOI: 10.1007/s10967-018-5955-5
Abstract: Uranium-series radiometric dating was performed on two well-pedigreed UF6 cylinder samples containing highly enriched uranium that were in use at the Portsmouth Gaseous Diffusion Plant between the mid-1970s and mid-1980s. Daughter–parent (i.e. 231Pa–235U, 230Th–234U) radiometric… read more here.
Keywords: 227ac 231pa; 230th 234u; 226ra 230th; application 226ra ... See more keywords
Measurement of the 231Pa/235U ratio for the age determination of uranium materials
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DOI: 10.1007/s10967-018-6247-9
Abstract: The paper describes the age (production date) determination of uranium reference materials using the 231Pa/235U ratio. Direct addition of 237Np in secular equilibrium with its 233Pa daughter was chosen instead of the regular milking of… read more here.
Keywords: uranium materials; age; determination uranium; measurement 231pa ... See more keywords
Age determination for uranium standard samples by 231Pa/235U radiochronometer
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DOI: 10.1007/s10967-019-06922-x
Abstract: Developing different model age determination methods of uranium sample could get more information on insight into source and suspected use in nuclear forensic investigation. A procedure for the determination of model age of uranium sample… read more here.
Keywords: age determination; age; 231pa 235u; 235u radiochronometer ... See more keywords
International cooperation in age-dating uranium standards for nuclear forensics using the 231Pa/235U radiochronometer
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DOI: 10.1007/s10967-020-07084-x
Abstract: During 2017–2018 Los Alamos National Laboratory, Lawrence Livermore National Laboratory and the China Institute of Atomic Energy collaborated in an interlaboratory 231Pa/235U radiochronometry exercise. The laboratories used different analytical methods to obtain a consensus model… read more here.
Keywords: radiochronometer; cooperation age; international cooperation; dating uranium ... See more keywords