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Measurements of nuclide yields in neutron-induced fission of natural uranium for SPIRAL2

Abstract : Cross-sections for nuclide production in fast-neutron induced fission of natural uranium are part of the input for predictions of yields of neutron-rich nuclides obtainable at Radioactive Ion Beam facilities. We first describe the neutron spectra produced according to the scheme once envisaged for SPES (protons on an enriched13C target) and the one adopted for SPIRAL2 (deuterons on natural carbon), which both have been measured at JYFL.We then present the measurements of Z-splits in isobaric chains performed at IGISOL. When coupled with the fission cross-section and A-splits for the relevant neutron spectrum, they allow estimates of nuclide crosssections. It looks that calculations, even those based on modern libraries, are too optimistic by about a factor of two.
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http://hal.in2p3.fr/in2p3-00997729
Contributor : Michel Lion <>
Submitted on : Wednesday, May 28, 2014 - 4:06:34 PM
Last modification on : Thursday, February 1, 2018 - 1:33:30 AM

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G. Lhersonneau, T. Malkiewicz, W.H. Trzaska. Measurements of nuclide yields in neutron-induced fission of natural uranium for SPIRAL2. Juha Äystö, Tommi Eronen, Ari Jokinen, Anu Kankainen, Iain D. Moore, Heikki Pentila. Three decades of research using IGISOL technique at the University of Jyväskylä, Springer, pp.387-394, 2014, ⟨10.1007/978-94-007-5555-0_31⟩. ⟨in2p3-00997729⟩

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