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4th International Workshop on Nuclear Fission and Fission-Product Spectroscopy (FISSION 2009), Saint Paul lez Durance : France (2009)
Isotopic Resolution of Fission Fragments from 238U+12C Transfer and Fusion Reactions
M. Caamaño1, F. Rejmund1, X. Derkx1, K.-H. Schmidt1, L. Andouin2, C.-O. Bacri2, G. Barreau3, J. Benlliure4, E. Casarejos4, B. Fernández-Domínguez5, L. Gaudefroy6, C. Golabek1, B. Jurado3, A. Lemasson1, A. Navin1, M. Rejmund1, T. Roger1, A. Shrivastava1, C. Schmitt1, J. Taieb6

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.
1 :  GANIL - Grand Accélérateur National d'Ions Lourds
2 :  IPNO - Institut de Physique Nucléaire d'Orsay
3 :  CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
4 :  USC, Universidad de Santiago de Compostela
5 :  University of Liverpool [Liverpool]
6 :  DAM/DIF - DAM Île-de-France
Physique/Physique Nucléaire Expérimentale
neutron-rich actinides – transfer-induced fission – fragment identification – inverse kinematics
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