Neutron-emission mechanisms in the 115In(α, xn) reactions

Autor: V. I. Trykova, N. N. Titarenko, B. V. Zhuravlev
Rok vydání: 2007
Předmět:
Zdroj: Physics of Atomic Nuclei. 70:1991-1998
ISSN: 1562-692X
1063-7788
Popis: Spectra and angular distributions of neutrons from the 115In(α, xn) reactions were measured at α-particle energies of 16, 18, 27, and 45 MeV. The measurements were performed with time-of-flight neutron spectrometers at pulsed accelerators of charged particles. The data obtained in this way were analyzed within the models of equilibrium, preequilibrium, and direct reaction mechanisms. The exact formalism of Hauser-Feshbach statistical theory was used in the calculations, level densities in residual nuclei excited in the reactions under consideration being found from the neutron evaporation spectra in the (p, n) reactions on tin isotopes. Contributions from equilibrium, preequilibrium, and direct neutron emission were studied in a wide range of α-particle energies.
Databáze: OpenAIRE