Fusion-fission and quasifission in the reactions with heavy ions leading to the formation of Hs

Journal Article · Sat Oct 20 00:00:00 EDT 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4764273· OSTI ID:22075638

Itkis, I M; Itkis, M G; Knyazheva, G N; Kozulin, E M ^[1]

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1. Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, 141980 Dubna (Russian Federation)

Mass and energy distributions of binary reaction products obtained in the reactions {sup 22}Ne+{sup 249}Cf,{sup 26}Mg+{sup 248}Cm,{sup 36}S+{sup 238}U and {sup 58}Fe+{sup 208}Pb leading to Hs isotopes have been measured. At energies below the Coulomb barrier the bimodal fission of Hs*, formed in the reaction {sup 26}Mg+{sup 248}Cm, is observed. In the reaction {sup 36}S+{sup 238}U the considerable part of the symmetric fragments arises from the quasifission process. At energies above the Coulomb barrier the symmetric fragments originate mainly from fusion-fission process for both reactions with Mg and S ions. In the case of the {sup 58}Fe+{sup 208}Pb reaction the quasifission process dominates at all measured energies. The pre- and post-scission neutron multiplicities as a function of the fragment mass have been obtained for the reactions studied.

• OSTI ID: 22075638
• Journal Information: AIP Conference Proceedings, Vol. 1491, Issue 1; Conference: Conference on nuclear structure and dynamics 2012, Opatija (Croatia), 9-13 Jul 2012; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALIFORNIUM 249 TARGET
COULOMB FIELD
CURIUM 248 TARGET
ENERGY SPECTRA
HASSIUM ISOTOPES
HEAVY ION FUSION REACTIONS
IRON 58 REACTIONS
LEAD 208 TARGET
MAGNESIUM 26 REACTIONS
MULTIPLICITY
NEON 22 REACTIONS
NUCLEAR FRAGMENTATION
QUASI-FISSION
SULFUR 36 REACTIONS
URANIUM 238 TARGET