Measurement of Be-7 by accelerator mass spectrometry

Details Measurement of Be-7 by accelerator mass spectrometry Measurement of Be-7 by accelerator mass spectrometry

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988e%26psl..89..103r&link_type=abstract

Earth and Planetary Science Letters (ISSN 0012-821X), vol. 89, no. 1, June 1988, p. 103-108. CNRS-CEA-supported research.

Physics

2

Accelerators, Beryllium 7, Cosmochemistry, Mass Spectroscopy, Beryllium 10, Nuclear Reactions, Nuclides

Scientific paper

This paper describes an accelerator mass spectrometry (AMS) technique for measuring the cosmogenic isotope Be-7 (half-life 53.2 days). The detection limit of about 10,000 atoms with this technique is nearly 100 times lower than that obtained by gamma counting. The potential advantages of this increased sensitivity, combined with AMS measurements of Be-10 (half-life 1.5 My) in the same samples, are discussed in the context of the application of Be-7/Be-10 as a time-dependent tracer of various environmental transport processes.

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