New determination of the 229Th half-life

Essex, Richard M.; Mann, Jacqueline L.; Collé, Ronald; Laureano-Perez, Lizbeth; Bennett, Megan E.; Dion, Heather; Fitzgerald, Ryan; Gaffney, Amy M.; Gourgiotis, Alkiviadis; Hubert, Amélie; Inn, Kenneth G.  W.; Kinman, William S.; Lamont, Stephen P.; Steiner, Robert; Williams, Ross W.

doi:10.1007/s10967-018-6032-9

Title: New determination of the ²²⁹Th half-life

Abstract

A new determination of the ²²⁹Th half-life was made based on measurements of the ²²⁹Th massic activity of a high-purity solution for which the ²²⁹Th molality had previously been measured. The ²²⁹Th massic activity was measured by direct comparison with SRM 4328C using 4παβ liquid scintillation counting, NaI counting, and standard addition liquid scintillation counting. The 229Th massic activity was confirmed by isotope dilution alpha spectrometry measurements. The ²²⁹Th half-life calculated from the activity measurements is (7825 ± 87) years (k = 2).

Authors:

^[1]; Mann, Jacqueline L. ^[1]; Collé, Ronald ^[1]; Laureano-Perez, Lizbeth ^[1]; Bennett, Megan E. ^[2]; Dion, Heather ^[3]; Fitzgerald, Ryan ^[1]; Gaffney, Amy M. ^[4]; Gourgiotis, Alkiviadis ^[5]; Hubert, Amélie ^[6]; Inn, Kenneth G. W. ^[7]; Kinman, William S. ^[3]; Lamont, Stephen P. ^[3]; Steiner, Robert ^[3]; Williams, Ross W. ^[4]

National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
Shine Medical Technologies, Janesville, WI (Untied States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Inst. for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses (France)
Alternative Energies and Atomic Energy Commission (CEA), Arpajon (France)
K & E Innovations, Ewa Beach, HI (United States)

Publication Date:: Tue Jul 24 00:00:00 EDT 2018

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1497940

Report Number(s):: LLNL-JRNL-756361
Journal ID: ISSN 0236-5731; 942601

Grant/Contract Number:: AC52-07NA27344

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Radioanalytical and Nuclear Chemistry

Additional Journal Information:: Journal Volume: 318; Journal Issue: 1; Journal ID: ISSN 0236-5731

Publisher:: Springer

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Essex, Richard M., Mann, Jacqueline L., Collé, Ronald, Laureano-Perez, Lizbeth, Bennett, Megan E., Dion, Heather, Fitzgerald, Ryan, Gaffney, Amy M., Gourgiotis, Alkiviadis, Hubert, Amélie, Inn, Kenneth G.  W., Kinman, William S., Lamont, Stephen P., Steiner, Robert, and Williams, Ross W. New determination of the 229Th half-life.  United States: N. p., 2018. 
Web.  doi:10.1007/s10967-018-6032-9.

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                    Essex, Richard M., Mann, Jacqueline L., Collé, Ronald, Laureano-Perez, Lizbeth, Bennett, Megan E., Dion, Heather, Fitzgerald, Ryan, Gaffney, Amy M., Gourgiotis, Alkiviadis, Hubert, Amélie, Inn, Kenneth G.  W., Kinman, William S., Lamont, Stephen P., Steiner, Robert, & Williams, Ross W. New determination of the 229Th half-life.  United States.  https://doi.org/10.1007/s10967-018-6032-9

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                    Essex, Richard M., Mann, Jacqueline L., Collé, Ronald, Laureano-Perez, Lizbeth, Bennett, Megan E., Dion, Heather, Fitzgerald, Ryan, Gaffney, Amy M., Gourgiotis, Alkiviadis, Hubert, Amélie, Inn, Kenneth G.  W., Kinman, William S., Lamont, Stephen P., Steiner, Robert, and Williams, Ross W. Tue .  
"New determination of the 229Th half-life".  United States.  https://doi.org/10.1007/s10967-018-6032-9.  https://www.osti.gov/servlets/purl/1497940.

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@article{osti_1497940,

  title        = {New determination of the 229Th half-life},

  author       = {Essex, Richard M. and Mann, Jacqueline L. and Collé, Ronald and Laureano-Perez, Lizbeth and Bennett, Megan E. and Dion, Heather and Fitzgerald, Ryan and Gaffney, Amy M. and Gourgiotis, Alkiviadis and Hubert, Amélie and Inn, Kenneth G.  W. and Kinman, William S. and Lamont, Stephen P. and Steiner, Robert and Williams, Ross W.},

  abstractNote = {A new determination of the 229Th half-life was made based on measurements of the 229Th massic activity of a high-purity solution for which the 229Th molality had previously been measured. The 229Th massic activity was measured by direct comparison with SRM 4328C using 4παβ liquid scintillation counting, NaI counting, and standard addition liquid scintillation counting. The 229Th massic activity was confirmed by isotope dilution alpha spectrometry measurements. The 229Th half-life calculated from the activity measurements is (7825 ± 87) years (k = 2).},

  doi          = {10.1007/s10967-018-6032-9},

  journal      = {Journal of Radioanalytical and Nuclear Chemistry},

  number       = 1,

  volume       = 318,

  place        = {United States},

  year         = {Tue Jul 24 00:00:00 EDT 2018},

  month        = {Tue Jul 24 00:00:00 EDT 2018}

}

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https://doi.org/10.1007/s10967-018-6032-9

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Figures / Tables:

Fig 1: Simplified decay scheme for ²²⁹Th. The uncertainties for the half-lives are standard uncertainties. Half-life and decay mode data for ²²⁹Th are from [12]. Half-life and decay mode 60 data for all other isotopes are from [13].

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Works referenced in this record:

A new primary standardization of 229Th
journal, July 2010

Fitzgerald, R.; Collé, R.; Laureano-Pérez, L.
Applied Radiation and Isotopes, Vol. 68, Issue 7-8
DOI: 10.1016/j.apradiso.2010.01.007

A new thorium-229 reference material
journal, April 2018

Essex, Richard M.; Mann, Jaqueline L.; Williams, Ross W.
Applied Radiation and Isotopes, Vol. 134
DOI: 10.1016/j.apradiso.2017.07.050

Guidelines for evaluating and expressing the uncertainty of NIST measurement results
report, January 1994

Taylor, B. N.
NIST Technical Note 1297 1994 Edition
DOI: 10.6028/NIST.TN.1297

A review on the mass spectrometric analysis of thorium
journal, January 2016

Aggarwal, Suresh Kumar
Radiochimica Acta, Vol. 104, Issue 7
DOI: 10.1515/ract-2015-2559

Uranium age determination by measuring the 230Th/234U ratio
journal, May 2005

Hall, G.
Journal of Radioanalytical and Nuclear Chemistry, Vol. 264, Issue 2
DOI: 10.1007/s10967-005-0732-7

Production of Ac-225 from Th-229 for Targeted α Therapy
journal, October 2005

Apostolidis, C.; Molinet, R.; Rasmussen, G.
Analytical Chemistry, Vol. 77, Issue 19
DOI: 10.1021/ac0580114

The uncertainty of the half-life
journal, May 2015

Pommé, S.
Metrologia, Vol. 52, Issue 3
DOI: 10.1088/0026-1394/52/3/S51

A new primary standardization of 229Th
journal, July 2010

Fitzgerald, R.; Collé, R.; Laureano-Pérez, L.
Applied Radiation and Isotopes, Vol. 68, Issue 7-8
DOI: 10.1016/j.apradiso.2010.01.007

²³⁰ Th- ²³⁴ U model ages of some uranium standard reference materials
journal, September 2011

Williams, R. W.; Gaffney, A. M.
Proceedings in Radiochemistry, Vol. 1, Issue 1
DOI: 10.1524/rcpr.2011.0005

Figures / Tables found in this record:

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

Similar Records in DOE PAGES and OSTI.GOV collections:

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Similar Records

Title: New determination of the 229Th half-life

Abstract

Citation Formats

Figures / Tables:

A new primary standardization of 229Th journal, July 2010

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Guidelines for evaluating and expressing the uncertainty of NIST measurement results report, January 1994

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Title: New determination of the ²²⁹Th half-life

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journal, July 2010

A new thorium-229 reference material
journal, April 2018

Guidelines for evaluating and expressing the uncertainty of NIST measurement results
report, January 1994

A review on the mass spectrometric analysis of thorium
journal, January 2016

Uranium age determination by measuring the 230Th/234U ratio
journal, May 2005

Production of Ac-225 from Th-229 for Targeted α Therapy
journal, October 2005

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journal, May 2015

A new primary standardization of 229Th
journal, July 2010

²³⁰ Th- ²³⁴ U model ages of some uranium standard reference materials
journal, September 2011