Counting Rare Atoms for Nuclear Astrophysics

Details Counting Rare Atoms for Nuclear Astrophysics Counting Rare Atoms for Nuclear Astrophysics

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009acppb..40..685p&link_type=abstract

Acta Physica Polonica B, vol. 40, Issue 3, p.685

Physics

Scientific paper

Accelerator Mass Spectrometry (AMS) is today the most selective and sensitive analytical techniques stellar-nucleosynthesis for determination of isotopic abundances ranging down to below 10-15. The principle and examples of the method are described. We now apply the technique to measurements of nuclear cross sections of stellar-nucleosynthesis reactions leading to long-lived nuclides. Recent measurements and experimental results for the important 62Ni(n,gamma )63Ni (t1/2=100 yrs) and 40Ca(alpha ,gamma )44Ti (59 yrs) reactions are presented.

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