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Shell effects in fusion-fission of heavy and superheavy nuclei

par Itkis, Mikhail;Bogatchev, A.A.;Itkis, I.M.;Jandel, Marian;Kliman, Ján;Kniajeva, G.N.;Kondratiev, N.A.;Korzyukov, I.V. I.V.;Kozulin, E.M.;Krupa, L.;Oganessian, Yu.Ts.;Pokrovsky, I.V.;Prokhorova, E.V.;Voskressenski, V.M.;Rusanov, Ya;Corradi, Lorenzo;Gadea, Andrés;Latina, Andrea;Stefanini, A.M. A.M.;Szilner, Suzana;Trotta, Monica;Beghini, Silvio;Montagnoli, G.;Scarlassara, Fernando;Hanappe, Francis ;Materna, Thomas ;Dorvaux, O.;Rowley, Neil;Stuttge, Louise;Giardina, Giorgio
Référence Acta physica Hungarica. Heavy ion physics, 19, 1-2, page (9-18)
Publication Publié, 2004

Article révisé par les pairs

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Résumé :

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 multi-detector DEMON. As a result of the experiments, mass and energy distributions (MED) of fission fragments, fission, quasi-fission and evaporation residues cross sections, multiplicities of neutrons and γ quanta and their dependence on the mechanism of formation and decay of compound systems have been studied.