[Zurück]

D. Tarrio, G. Badurek, E. Jericha, H. Leeb, H. Oberhummer, -. nTOF Collaboration:
"Neutron-induced fission cross section of ^natPb and ²⁰⁹Bi from threshold to 1 Ge V: An improved parametrization";
Physical Review C, 83 (2011), 044620; S. 1 - 9.

Neutron-induced fission cross sections for ^natPb and ²⁰⁹Bi were measured with a white-spectrum neutron source at the CERN Neutron Time-of-Flight (n_TOF) facility. The experiment, using neutrons from threshold up to 1 GeV, provides the first results for these nuclei above 200 MeV. The cross sections weremeasured relative to ²³⁵U and ²³⁸U in a dedicated fission chamber with parallel plate avalanche counter detectors. Results are compared with previous experimental data. Upgraded parametrizations of the cross sections are presented, from threshold energy up to 1 GeV. The proposed new sets of fitting parameters improve former results along the whole energy range.

Neutron-induced fission, Accelerator-driven transmutation of nuclear waste, Neutron sources, Fission reactors

http://dx.doi.org/10.1103/PhysRevC.83.044620