Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...142..268w&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 142, no. 2, Jan. 1985, p. 268-272.
Astronomy and Astrophysics
Astrophysics
12
Isotopes, Neutron Cross Sections, Nuclear Capture, Nuclear Fusion, Particle Energy, Germanium Isotopes, Integral Equations, Maxwell-Boltzmann Density Function, Strontium Isotopes
Scientific paper
The neutron capture cross-sections of Sr-86, Sr-87, and Ge-70 have been measured for the first time by time-of-flight in the energy range from 340 to 240 keV. The measurements were carried out in order to improve the data base for s-process nucleosynthesis studies in the mass region A less than 100. The neutron source used to initiate capture was the Li-7(p,n)Be-7 reaction, and a Van de Graaff accelerator was used to excite the neutrons. Maxwellian averaged cross sections at 20, 30, 40, and 50 keV are given in a table. It is shown that the value of 74 (+ or - 5 mb) for the 30 keV capture cross section of Sr-86 is in agreement with the results of Hicks et al. (1982).
Beer Hermann
Walter Gerold
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