Neutron-induced cross sections of actinides via the surrogate-reaction method
1 CENBG, Chemin du Solarium B.P. 120, 33175 Gradignan, France
2 University of Oslo, Department of Physics, P.O. Box 1048, Blindern 0316 Oslo, Norway
3 IPN Orsay, 15 rue G. Clémenceau, 91406 Orsay cedex, France
4 CEA Saclay, DSM/Irfu, 91191 Gif-sur-Yvette cedex, France
5 iThemba LABS, P.O. Box 722, 7129 Somerset West, South Africa
6 CEA Cadarache, DEN/DER/SPRC/LEPh, 13108 Saint Paul lez Durance, France
7 CEA DAM DIF, 91297 Arpajon, France
The surrogate-reaction method is an indirect way of determining cross sections for reactions that proceed through a compound nucleus. This technique may enable neutron-induced cross sections to be extracted for short-lived nuclei that otherwise cannot be measured. However, the validity of the surrogate method for extracting capture cross sections has to be investigated. In this work we study the reactions 238U(d,p)239U, 238U(3He,t)238Np, 238U(3He,4He)237U as surrogates for neutroninduced reactions on 238U, 237Np and 236U, respectively, for which good quality data exist. The experimental set-up enabled the measurement of fission and gamma-decay probabilities. First results are presented and discussed.
© Owned by the authors, published by EDP Sciences, 2013
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