Title: First results on the neutron-induced fission cross-section of 231Pa for incident neutron energies En > 17 MeV
Authors: OBERSTEDT StephanOBERSTEDT AndreasBIRGERSSON EvertFABRY ImrichHAMBSCH Franz-JosefKORNILOV NikolaiLOEVESTAM GoeranTUDORA Anabella
Citation: ANNALS OF NUCLEAR ENERGY vol. 43 p. 26-30
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication Year: 2012
JRC Publication N°: JRC50470
ISSN: 0306-4549
URI: http://www.elsevier.com/locate/anucene
http://publications.jrc.ec.europa.eu/repository/handle/JRC50470
DOI: 10.1016/j.anucene.2011.12.023
Type: Articles in Journals
Abstract: First results on the neutron-induced fission cross-section of 231Pa for incident neutron energies En > 17 MeV are presented. The experiments were carried out with quasi mono-energetic neutrons produced in the reaction T(d, n)4He. Corrections for low-energy neutron background produced in this reaction at incident deuteron energies Ed > 2 MeV are taken into account and based on experimental data obtained by two different techniques. Despite the relatively large error bars at the higher neutron energies, the new cross-section values meet the accuracy requirements set by the IAEA and will allow to remove the hitherto existing large spread between different previously published data. Recent cross-section calculations describe well the new experimental results, which are in consistency with cross-section values obtained in a particle-transfer reaction at excitation energies corresponding to neutron energies En < 10 MeV.
JRC Institute:Institute for Reference Materials and Measurements

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