1. 197Au(n,2n) reaction cross section in the 15-21 MeV energy range.
- Author
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Kalamara, A., Vlastou, R., Kokkoris, M., Nicolis, N. G., Patronis, N., Serris, M., Michalopoulou, V., Stamatopoulos, A., Lagoyannis, A., and Harissopulos, S.
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NUCLEAR cross sections , *NUCLEAR reactions , *NEUTRON beams - Abstract
The cross section of the 197Au(n,2n)196Au reaction has been determined at six energies ranging from 15.3-20.9 MeV by means of the activation technique, relative to the 27Al(n,α)24Na reaction. Quasimonoenergetic neutron beams were produced via the ³H(d,n)4He reaction at the 5.5 MV Tandem T11/25 accelerator laboratory of NCSR "Demokritos". After the irradiations, the induced γ-ray activity of the target and reference foils was measured with high-resolution HPGe detectors. The cross section for the high spin isomeric state (12-) was determined along with the sum of the ground (2-), the first (5+), and second (12-) isomeric states. Theoretical calculations were carried out with the codes empire 3.2.2 and talys 1.8. Optimum input parameters were chosen in such a way as to simultaneously reproduce several experimental reaction channel cross sections in a satisfactory way, namely the (n,elastic), (n,2n), (n,3n), (n,p), (n,α), and (n,total) ones. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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