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Fusion-fission of heavy and superheavy nuclei |
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| Authors: | M. G. Itkis S. Beghini A. A. Bogatchev L. Corradi O. Dorvaux A. Gadea G. Giardina A. A. Goverdovski F. Hanappe I. M. Itkis M. Jandel J. Kliman G. N. Kniajeva N. A. Kondratiev I. V. Korzyukov E. M. Kozulin L. Krupa L. Latina T. Materna G. Montagnoli K. J. Moody Yu. Ts. Oganessian I. V. Pokrovsky V. A. Ponomarenko E. V. Prokhorova N. Rowley A. Ya. Rusanov F. Scarlassara A. M. Stefanini L. Stuttgé S. Szilner M. Trotta A. M. Vinodkumar V. M. Voskressensky |
| Affiliation: | (1) Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980, Russia;(2) Dipartimento di Fisica, Universitá di Padova, Italy;(3) Laboratorio Nazionali di Legnaro, Istituto Nazionale di Fisica Nucleare, Legnaro (Padova), Italy;(4) Institut de Recherches Subatomiques, Strasbourg, France;(5) Dipartimento di Fisica dell’ Universitá di Messina, Italy;(6) Institute for Physics & Power Engineering, Obninsk, Russia;(7) Universite Libre de Bruxelles, Brussels, Belgium;(8) University of California, Lawrence Livermore National Laboratory, USA;(9) Institute of Nuclear Physics of the National Nuclear Center, Almaty, Kazakhstan |
| Abstract: | The process of fusion-fission of heavy and superheavy nuclei (SHE) with Z=82–122 formed in the reactions with 48Ca and 58Fe ions at energies near and below the Coulomb barrier has been studied. The experiments were carried out at the U-400 accelerator of the Flerov Laboratory of Nuclear Reactions (JINR) and at the XTU Tandem accelerator of the National Laboratory of Legnaro (LNL) using the time-of-flight spectrometer of fission fragments CORSET and the neutron multidetector DEMON. As a result of the experiments, mass and energy distributions (MED) of fission fragments; fission, quasifission, and evaporation residue cross sections; and multiplicities of neutrons and γ-quanta and their dependences on the mechanism of formation and decay of compound systems have been studied. |
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