title: Neutron-induced fission cross section of 233Pa between 1.0 and 3.0 MeV.
abstract: The energy dependent neutron-induced fission cross section of 233Pa has for the first time been measured directly with monoenergetic neutrons. This nuclide is an important intermediary in a thorium based fuel cycle, and its fission cross section is a key parameter in the modeling of future advanced fuel and reactor concepts. A first experiment resulted in four cross section values between 1.0 and 3.0 MeV, establishing a fission threshold in excess of 1 MeV. Significant discrepancies were found with a previous indirect experimental determination and with model estimates.
authors.affiliation: EC-JRC-Institute of Reference Materials and Measurements (IRMM), Retieseweg, B-2440 Geel, Belgium.
authors.forename: F
authors.initials: F
authors.lastname: Tovesson
authors.forename: F J
authors.initials: FJ
authors.lastname: Hambsch
authors.forename: A
authors.initials: A
authors.lastname: Oberstedt
authors.forename: B
authors.initials: B
authors.lastname: Fogelberg
authors.forename: E
authors.initials: E
authors.lastname: Ramström
authors.forename: S
authors.initials: S
authors.lastname: Oberstedt