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  • 1
    Electronic Resource
    Electronic Resource
    Fine Structure in the alpha decays of 226U and 230Pu (1999)
    Springer
    The European physical journal 6 (1999), S. 269-273 
    Details
    ISSN: 1434-601X
    Keywords: PACS: 23.60 +e α decay – 27.90 +b 220 〈 A – 25.70 -z Low and intermediate energy heavy-ion reactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The nuclei 226U and 230Pu have been populated via reactions involving 208Pb targets bombarded by 22Ne and 26Mg projectiles. Fusion-evaporation residues were separated in-flight using a gas-filled recoil separator. A position-sensitive Si-strip detector was employed at the focal plane in order to identify correlated α-decay chains. Two fine structure α-decay lines have been observed. The first, with an energy of 7385(5) keV, is assigned as the α decay from 226U to the first excited 2+ state of 222Th. The second line, observed for the first time in this work, has an energy of 6961(30) keV and is assigned as the α decay from 230Pu to the first excited 2+ state of 226U. The excitation energy of the first excited 2+ state in 226U was determined to be 96(25) keV, giving an estimate of the deformation parameter β2≃ 0.20.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050345
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  • 2
    Electronic Resource
    Electronic Resource
    High-spin states following multi-nucleon transfer (2000)
    Springer
    The European physical journal 9 (2000), S. 183-189 
    Details
    ISSN: 1434-601X
    Keywords: PACS. 21.10.Re Collective levels – 23.20.Lv Gamma transitions and level energies – 25.70.Gh Compound nucleus – 27.90.+b 220 ≤A
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: High-spin states in neutron-rich nuclei, populated following deep-inelastic multi-nucleon transfer, have been studied using the GAMMASPHERE array at the LBNL, USA. A 64Ni beam at an energy ∼ 15% above the Coulomb barrier was incident upon a thick 208Pb target, leading to the population of more than 130 different nuclei. The strongest channels correspond to nuclei close to the projectile and target, although transfer of up to 50 nucleons has been observed. New high-spin states in neutron-rich 60,62Fe and 68,70,72Zn nuclei have been observed. Some limitations of this method of high-spin spectroscopy are discussed, including the apparent difficulty of populating odd-odd and odd-even isotopes via this type of reaction. The data have been searched for superdeformed (SD) states in the A = 190-200 region, but no evidence for their presence has been found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500070035
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    Paper (German National Licenses)
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