Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...357..649m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 357, July 10, 1990, p. 649-652.
Astronomy and Astrophysics
Astrophysics
9
Graphite, Neutron Cross Sections, Nuclear Capture, Nuclear Reactions, Stellar Evolution, Stellar Temperature, Absorption Cross Sections, Heavy Elements, Nuclear Astrophysics, Nuclear Reactors
Scientific paper
Prompt gamma-ray detector measurements with graphite samples were examined to establish their limit of sensitivity to weak resonances in the keV neutron energy range. For kT = 30 keV the cross section is estimated to be no larger than 14 microbarns. A lower limit of 3.2 microbarns is based on 1/v extrapolation of the measured thermal cross section.
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