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  • Articles: DFG German National Licenses  (2)
  • 34.70  (1)
  • 61.80  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Positron lifetimes for neutron-irradiated C60 (1995)
    Springer
    Applied physics 61 (1995), S. 335-337 
    Details
    ISSN: 1432-0630
    Keywords: 61.80 ; 78.70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The neutron-irradiation effects on C60 fullerite powder were studied by positron lifetime spectroscopy. Below 0.5 ns, a single lifetime of 382±1 ps was found for the unirradiated annealed sample and two components were resolved after neutron irradiation with a dose of 2×1016 n/cm2. Possible origins of these components are briefly discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01538200
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Distribution ofK α L n satellite yields for mediumZ elements bombarded with16O ions (1989)
    Springer
    The European physical journal 14 (1989), S. 37-43 
    Details
    ISSN: 1434-6079
    Keywords: 34.50 ; 34.70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract K α X-ray spectra were measured with a Du Mond type curves crystal spectrometer for42Mo and46Pd targets bombarded with oxygen ions at 5.5 MeV/u energy (i.e. at velocity closely matching those of the targetL-shell electrons). The distribution ofL-shell vacancies produced in collisions with simultaneousK-shell ionization is deduced from the measured yield distribution of theK α X-ray satellites. The distribution shows deviations from the binomial ones. The deviations can be accounted for by assuming that theL-shell vacancy production is due to two uncorrelated processes: the direct ionization by impact and the electron capture from theL-shell of the target atom into theK-shell of the projectile, both occurring at nearly central collisions. The corresponding probability values are deduced using simple statistical considerations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01401341
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    Paper (German National Licenses)
    Fulltext
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