Ultra-trace analysis of 41Ca in urine by accelerator mass spectrometry: An inter-laboratory comparison

George S. Jackson, Darren J. Hillegonds, Paul Muzikar, Brent Goehring

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


A 41Ca interlaboratory comparison between Lawrence Livermore National Laboratory (LLNL) and the Purdue Rare Isotope Laboratory (PRIME Lab) has been completed. Analysis of the ratios assayed by accelerator mass spectrometry (AMS) shows that there is no statistically significant difference in the ratios. Further, Bayesian analysis shows that the uncertainties reported by both facilities are correct with the possibility of a slight under-estimation by one laboratory. Finally, the chemistry procedures used by the two facilities to produce CaF2 for the cesium sputter ion source are robust and do not yield any significant differences in the final result.

Original languageEnglish (US)
Pages (from-to)14-20
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
StatePublished - 2013
Externally publishedYes


  • Ca
  • Accelerator mass spectrometry
  • Bayesian statistics
  • Interlaboratory comparison

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics


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