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Home / Publications / Journals / Nuclear Science and Engineering / Volume 142 / Number 2 / Pages 177-194

Neutron and Proton Cross-Section Evaluations for 232Th up to 150 MeV

A. V. Ignatyuk, V. P. Lunev, Yu. N. Shubin, E. V. Gai, N. N. Titarenko, W. Gudowski

Nuclear Science and Engineering / Volume 142 / Number 2 / October 2002 / Pages 177-194

Technical Paper

Investigations aimed at the development of neutron and proton cross-section evaluations for 232Th at intermediate energies in the range of 0 to 200 MeV are described. The coupled-channel optical model has been used to calculate the neutron total, elastic, and reaction cross sections and the elastic scattering angular distributions. Evaluations of the neutron and charged particle emission cross sections and of the fission cross sections have been obtained on the basis of the statistical description that includes direct, preequilibrium, and equilibrium mechanisms of nuclear reactions. The Kalbach parameterization of angular distributions has been used to describe the double-differential cross sections of emitted neutrons and charged particles in ENDF/B-VI format.

 
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