AÏCHE, M.; BOUTOUX, G.; JURADO, B.; BARREAU, G.; CAPELLAN, N.; COMPANIS, I.; CZAJKOWSKI, S.; DASSIÉ, D.; HAAS, B.; MATHIEU, L.; BAIL, A.; BAUGE, E.; DAUGAS, J.M.; FAUL, T.; GAUDEFROY, L.; MÉOT, V.; MOREL, Pierre; PILLET, N.; ROIG, O.; TAIEB, J.; THÉROINE, C.; SEROT, Olivier; GUNSING, F.; BURKE, J.T.; DERKX, X.; TASSAN-GOT, L.

doi:10.1051/epjconf/20100807001

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AÏCHE, M.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

BOUTOUX, G.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

JURADO, B.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

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EPJ Web of Conferences, EPJ Web of Conferences, 2010-05-25, Paris. 2010, vol. 8, p. 07001

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The surrogate reaction method is an indirect way of determining cross sections for nuclear reactions that proceed through a compound nucleus. In this method, the compound nucleus is produced via an alternative (surrogate) reaction and its decay (by fission, gamma or neutron emission) is measured in coincidence with the outgoing appropriate charged particle. This technique has enabled neutron-induced cross sections to be extracted for nuclear reactions on short-lived nuclei that otherwise could not be measured. The CENBG collaboration has successfully applied this technique to determine the neutron-induced fission cross sections of several short-lived nuclei such as 233Pa, 242,243Cm and 241Am. These data are very important for the development of the Th/U cycle and for minor actinide transmutation. We currently investigate whether this powerful technique can also be used to determine the neutron-induced capture cross sections. For this purpose we will use the surrogate reaction 174Yb(3He,pγ)176Lu to infer the well known 175Lu(n,γ) cross section and compare the results with the directly measured neutron-induced data. The experimental set-up and the first results will be presented. We will also discuss our future plans to use the surrogate method for extracting actinides (n,γ) cross sections.< Réduire

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Neutron-induced capture cross sections via the surrogate reaction method

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