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  • Artikel: DFG Deutsche Nationallizenzen  (4)
  • 1970-1974  (3)
  • 1965-1969  (1)
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  • Artikel: DFG Deutsche Nationallizenzen  (4)
Materialart
Erscheinungszeitraum
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    The decay of76Kr (1973)
    Springer
    The European physical journal 260 (1973), S. 253-270 
    Details
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The decay properties of76Kr have been investigated using mass separated samples produced by the ISOLDE facility. New information on energies, spins, parities and transition probabilities concerning levels in76Br is presented. No direct β-feeding of the76Br ground state was found resulting in a spin-parity assignment of 1− to this state.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01396018
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 2
    Digitale Medien
    Digitale Medien
    Measurement of mass- and time-dependence of delayed fission neutrons by an on-line mass separator (1969)
    Springer
    The European physical journal 220 (1969), S. 101-129 
    Details
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Delayed neutron emission for thermal neutron fission of235U is investigated by means of a helium-filled mass separator. At the focus of the separator, the neutron activity is detected in coincidence with theΒ decay preceding the neutron emission. Measurements of the activity build-up give the total delayed neutron yield and the yields for different times after fission. Measurements of the activity decay give the half-life distribution. The mass-dependence of yield and half-life was investigated for the whole fission product mass region. The splitting of the total yield of delayed neutrons between light and heavy fission products has been determined. Based on Keepin's value of the total number of delayed neutrons per fission, a yield of 1.05 and 0.53 neutrons per 100 fissions has been obtained for light and heavy fission products, respectively. The experimentally determined mass- and time-dependences of delayed neutron emission are compared with those calculated from the known precursors. Unidentified neutron activities in the mass regions 85–88 (half-life 1 sec) and 96–100 (half-life 1.5 sec) are discussed. By means of theoretical considerations the yield difference for delayed neutrons between light and heavy fission products is interpreted and the new neutron activity is assigned to the precursors98Y or99Y.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01394742
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 3
    Digitale Medien
    Digitale Medien
    Decay properties of neutron deficient Kr isotopes (1974)
    Springer
    The European physical journal 266 (1974), S. 65-67 
    Details
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The decay properties of the neutron deficient isotopes73–77Kr and73–76Br have been studied at the ISOLDE facility at CERN. The total decay energiesQ, as determined fromβ + singles orβ + -γ coincidence measurements, are compared with mass formulae.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01668666
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 4
    Digitale Medien
    Digitale Medien
    The decay of75Kr (1974)
    Springer
    The European physical journal 266 (1974), S. 123-128 
    Details
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The decay of the isotope75Kr (T1/2=4.5 ±0.3 m) has been studied using mass separated sources produced at the ISOLDE facility at CERN. A decay scheme is proposed based on gamma, positon, and conversion electron singles and coincidence measurements. The total decay energy was measured to be QEC=4.4 ± 0.2 MeV. The resulting spin-parity assignments and the absence of a 9/2+ isomeric state in75Br are discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01668710
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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