Total cross sections and thermonuclear reaction rates for 9Be(α,n)12C

Details Total cross sections and thermonuclear reaction rates for 9Be(α,n)12C Total cross sections and thermonuclear reaction rates for 9Be(α,n)12C

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994phrvc..49.1205w&link_type=abstract

Physical Review C (Nuclear Physics), Volume 49, Issue 2, February 1994, pp.1205-1213

Physics

Nuclear Physics

17

Transfer Reactions, Elementary Particle Processes, 6<=A<=19

Scientific paper

The 9Be(α,n)12C reaction determines the rate for neutron-catalyzed helium burning and thus plays an important role in supernovae ejecta under α- and n-rich conditions which may lead to the r process. Cross sections for this reaction have been measured for 0.16<=Ec.m.<=1.87 MeV using a 4π neutron detector, and are used to calculate the thermonuclear reaction rates for temperatures between 0.1 and 10 GK. During these measurements, the thick-target yields were determined for 0.50<=Eα<=2.30 MeV, the stopping powers for α's in beryllium determined for 0.24<=Eα<=2.12 MeV, and the 9Be(p,p) elastic scattering cross sections measured at θlab=142.4° for 2.34<=Ep<=2.66 MeV.

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