EPJ Web Conf.
Volume 146, 2017ND 2016: International Conference on Nuclear Data for Science and Technology
|Number of page(s)||6|
|Section||Nuclear Reaction Measurements|
|Published online||13 September 2017|
Investigation of the surrogate-reaction method via the simultaneous measurement of gamma-emission and fission probabilities
1 CENBG, CNRS/IN2P3-Université de Bordeaux, Chemin du Solarium, BP. 120, 33175 Gradignan, France
2 IPN d’Orsay, Bâtiment 100, 15 rue G. Clemenceau, 91406 Orsay Cedex, France
3 CELIA, 43 rue Pierre Noailles, 33405 Talence Cedex, France
4 CEA DAM DIF, 91297 Arpajon, France
5 Department of Physics, University of Oslo, 0316 Oslo, Norway
6 LPSC, Université Grenoble-Alpes, CNRS/IN2P3, 38026 Grenoble Cedex, France
7 Fundamental Fysik, Chalmers Tekniska Högskola, 41296 Göteborg, Sweden
8 EC-JRC, IRMM, Retieseweg 111, 2440 Geel, Belgium
9 CEA-Cadarache, DEN/DER/SPRC/LEPh, 13108 Saint-Paul-lez-Durance, France
a e-mail: firstname.lastname@example.org
Published online: 13 September 2017
We present the results of two experiments where we have measured for the first time simultaneously the fission and gamma-decay probabilities induced by different surrogate reactions. In particular, we have investigated the 238U(d,p), 238U(3He,t) and 238U(3He,4He) reactions as surrogates for the neutron-induced n + 238U, n + 237Np and n + 236U reactions, respectively. In the region where gamma emission, neutron emission and fission compete, our results for the fission probabilities agree fairly well with the neutron-induced data, whereas our gamma-decay probabilities are significantly higher than the neutron-induced data. The interpretation of these results is not obvious and is discussed within the framework of the statistical model with preliminary results for calculated spin-parity distributions populated in surrogate reactions. We also present future plans for surrogate-reaction studies in inverse kinematics with radioactive-ion beams at storage rings.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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