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  • 1985-1989  (2)
  • 1986  (2)
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  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Oxygen agglomeration at111In in silver in the presence of radiation defects (1986)
    Springer
    The European physical journal 65 (1986), S. 193-208 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The internal oxidation process of111In in Ag has been studied by means of the perturbed angular correlation technique. A homogeneous111In concentration of typically 0.05 at ppm has been produced by irradiating the Ag samples with 35 MeV α-particles. In particular, the effects of solving oxygen before the irradiation and of radiation induced defects have been explored. It is found that oxygen stabilizes the radiation damage by several hundred degrees. Four molecule-type complexes have been identified, consisting each of one111In atom, vacancies and oxygen atoms, among them one with cubic environment υ Q =0. The formation and desintegration kinetics of these complexes have been studied as function of the oxygen concentration and the irradiation and measuring temperature. A model is suggested which explains the oxidation process as due to diffusing oxygen and oxygen-vacancy pairs trapped by111In.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01303844
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Lifetime measurements in70Se and72Se (1986)
    Springer
    The European physical journal 325 (1986), S. 45-53 
    Details
    ISSN: 1434-601X
    Keywords: 23.20.Ck ; 27.50.+e
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Mean lives and limits of lifetimes have been determined for some ten mostly yrast states in70Se, by means of the recoil distance Doppler shift technique. The states were excited in the reaction40Ca(36Ar,α2p) at 115 MeV resp. the reaction58Ni(14N,pn) at 39 MeV beam energy. The systematic decrease ofB(E2) values along the the ground band transitions indicates a band crossing consistent with theγ-ray energies. Effects of continuum feeding times in both reactions are being discussed. The lifetimes of the lowest three yrast transitions in72Se have been remeasured by means of the reactions40Ca(36Ar,4p) and60Ni(14N,pn).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294241
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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