Quasi-Absolute Neutron-Induced Fission Cross Section of 243Am
The existing evaluations of the 243Am neutron-induced fission cross section have been questioned by recent studies performed at the GNEISS facility. In the neutron energy range from 1 to 6 MeV the GNEISS data present deviations of more than 15% with respect to the evaluations. In order to solve this problem, we have performed a first quasi-absolute measurement of this fission cross section from the fission threshold up to the onset of secondchance fission. To achieve this goal we have used the neutron-proton scattering cross section as reference reaction to determine the incident neutron flux. This cross section is known with a precision better than 1% for a wide range of neutron energies (1meV to 20 MeV).
AÏCHE M.;
KESSEDJIAN G.;
BARREAU G.;
JURADO B.;
BIDAUD A.;
CZAJKOWSKI S.;
DASSIÉ D.;
HAAS B.;
MATHIEU L.;
TASSAN-GOT L.;
WILSON J.;
HAMBSCH Franz-Josef;
OBERSTEDT Stephan;
ALMAHAMID I.;
FLOYD J.;
LUKENS W.;
SHUH D.;
2008-09-17
EDP Sciences
JRC47323
http://nd2007.edpsciences.org/,
https://publications.jrc.ec.europa.eu/repository/handle/JRC47323,
10.1051/ndata:07473,
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