Operation of the "small" BioAMS spectrometers at CAMS: Past and future prospects

T. J. Ognibene, K. W. Haack, G. Bench, T. A. Brown, Ken W Turteltaub

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A summary of results from the solid samples run on our compact 1 MV AMS system over its 13.5 years of operation is presented. On average 7065 samples per year were measured with that average dropping to 3278 samples per year following the deployment of our liquid sample capability. Although the dynamic range of our spectrometer is 4.5 orders in magnitude, most of the measured graphitic samples had 14C/C concentrations between 0.1 and 1 modern. The measurements of our ANU sucrose standard followed a Gaussian distribution with an average of 1.5082 ± 0.0134 modern. The LLNL biomedical AMS program supported many different types of experiments, however, the large majority of samples measured were derived from animal model systems. We have transitioned all of our biomedical AMS measurements to the recently installed 250 kV SSAMS instrument with good agreement compared in measured 14C/C isotopic ratios between sample splits. Finally, we present results from replacement of argon stripping gas with helium in the SSAMS with a 22% improvement in ion transmission through the accelerator and high-energy analyzing magnet.

Original languageEnglish (US)
Pages (from-to)54-57
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume361
DOIs
StatePublished - Oct 15 2015
Externally publishedYes

Fingerprint

Spectrometers
spectrometers
Gaussian distribution
Sugar (sucrose)
Alpha Magnetic Spectrometer
Particle accelerators
Magnets
Helium
Argon
Animals
Ions
Liquids
Gases
Experiments
animal models
sucrose
stripping
normal density functions
dynamic range
accelerators

Keywords

  • C
  • Accelerator mass spectrometry
  • Biomedical AMS
  • Graphite
  • SSAMS

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Operation of the "small" BioAMS spectrometers at CAMS : Past and future prospects. / Ognibene, T. J.; Haack, K. W.; Bench, G.; Brown, T. A.; Turteltaub, Ken W.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 361, 15.10.2015, p. 54-57.

Research output: Contribution to journalArticle

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