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|Title:||First results on the neutron-induced fission cross-section of 231Pa for incident neutron energies En > 17 MeV|
|Authors:||OBERSTEDT Stephan; OBERSTEDT Andreas; BIRGERSSON Evert; FABRY Imrich; HAMBSCH Franz-Josef; KORNILOV Nikolai; LOEVESTAM Goeran; TUDORA Anabella|
|Citation:||ANNALS OF NUCLEAR ENERGY vol. 43 p. 26-30|
|Publisher:||PERGAMON-ELSEVIER SCIENCE LTD|
|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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