Isotopic Resolution of Fission Fragments from 238U+12C Transfer and Fusion Reactions

Abstract : Recent results from an experiment at GANIL, performed to investigate the main properties of fission-fragment yields and energy distributions in different fissioning nuclei as a function of the excitation energy, in a neutron-rich region of actinides, are presented. Transfer reactions in inverse kinematics between a 238U beam and a 12C target produced different actinides, within a range of excitation energy below 30 MeV. These fissioning nuclei are identified by detecting the target-like recoil, and their kinetic and excitation energy are determined from the reconstruction of the transfer reaction. The large-acceptance spectrometer VAMOS was used to identify the mass, atomic number and charge state of the fission fragments in flight. As a result, the characteristics of the fission-fragment isotopic distributions of a variety of neutron-rich actinides are observed for the first time over the complete range of fission fragments.
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Submitted on : Friday, June 19, 2009 - 9:54:50 AM
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M. Caamano, F. Rejmund, X. Derkx, K.-H. Schmidt, L. Andouin, et al.. Isotopic Resolution of Fission Fragments from 238U+12C Transfer and Fusion Reactions. 4th International Workshop on Nuclear Fission and Fission-Product Spectroscopy (FISSION 2009), May 2009, Saint Paul lez Durance, France. ⟨in2p3-00396876⟩

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