Measurements of nuclide yields in neutron-induced fission of natural uranium for SPIRAL2 - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Book Sections Year : 2014

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

T. Malkiewicz
  • Function : Author
W.H. Trzaska
  • Function : Author

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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Dates and versions

in2p3-00997729 , version 1 (28-05-2014)

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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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