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Ultra-sensitive measurements of 233U by accelerator mass spectrometry for national security applications

  • Scott J. Tumey
  • Thomas A. Brown
  • Bruce A. Buchholz
  • Terry F. Hamilton
  • Ian D. Hutcheon
  • Ross W. Williams
Article

Abstract

By making modifications to our previously established measurement setup, we increased our abundance sensitivity for 233U by three orders of magnitude and can now measure 233U/238U ratios as low as 10−13. Because 233U has separate production pathways than 236U, it can provide valuable information on the particular source of anthropogenic uranium in a sample. We demonstrated the utility of our improved capability by using 233U to distinguish separate sources of anthropogenic uranium in a set of samples collected from a contaminated site. In the future, we plan to apply our new capability to characterizing 233U in a wide range of uranium materials.

Keywords

233Nuclear forensics AMS 

Notes

Acknowledgement

This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2009

Authors and Affiliations

  • Scott J. Tumey
    • 1
  • Thomas A. Brown
    • 1
  • Bruce A. Buchholz
    • 1
  • Terry F. Hamilton
    • 1
  • Ian D. Hutcheon
    • 2
  • Ross W. Williams
    • 2
  1. 1.Center for Accelerator Mass SpectrometryLawrence Livermore National LaboratoryLivermoreUSA
  2. 2.Chemical Sciences Division, Physical and Life Sciences DirectorateLawrence Livermore National LaboratoryLivermoreUSA

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