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  • 1960-1964  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 50 (1963), S. 326-327 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 162 (1961), S. 142-153 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Oxygen gas was irradiated with 34·5 MeV bremsstrahlung. The spectrum of protons between 6 MeV and 22 MeV was measured with a Na I(Tl) scintillation spectrometer. The energy resolution was equivalent to that obtainable with nuclear photoplates, but the number of protons registered was much higher. The differential cross section for (γ, p) reactions that leave the residual nucleus in the ground state was found to be 0·13 mbarn/steradian at 30 MeV gamma ray energy and at 90° with respect to the direction of the incident beam.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Zusammenfassung Ein CsJ(Tl)-Kristall-Spektrometer erwies sich in Verbindung mit Impulsformdiskrimination als geeigneter Detektor zur Messung der Energiespektren von Photoprotonen. Beim Sauerstoff und Neon konnten die Strukturen in der Energieverteilung der Protonen und der absolute Wirkungsquerschnitt der (γ, p)-Reaktion bestätigt werden. Die Messungen am Kohlenstoff ergaben im allgemeinen Verlauf ebenfalls Übereinstimmung mit den bisherigen Messungen. Die zahlreichen Strukturen im Photoprotonenspektrum des Stickstoffs lassen sich wegen der Vielfalt möglicher Reaktionskanäle noch nicht zuordnen.
    Notes: Abstract The energy spectra of photoprotons from carbon, nitrogen, oxygen and neon were investigated with 30·5 MeV bremsstrahlung of the Heidelberg betatron using a CsI(Tl)-spectrometer. The known resonances could be confirmed, new resonances are found in nitrogen. Yields and cross sections relative to those of the reaction C12(γ, n)C11 are given.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 162 (1961), S. 154-159 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A thin Cs I(Tl) crystal was used to measure the yield of photoprotous for a 34·5 MeV bremsstrahlung spectrum. The following values relative to the yield of the C12(γ, n) reaction were obtained: 2·45±0·35 for argon and 2·06±0·28 for oxygen. An upper limit of the integrated cross section for the (γ, n)- and (γ, p)-reaction in oxygen is given.
    Type of Medium: Electronic Resource
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