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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 |
| Institution: | (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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