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  • 1990-1994  (2)
  • 1870-1879
  • 14.80.Am  (1)
  • 34.50  (1)
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  • 1990-1994  (2)
  • 1870-1879
Jahr
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Saturated 2D-LIF of OH and 2D determination of effective collisional lifetimes in atmospheric pressure flames (1991)
    Springer
    Applied physics 52 (1991), S. 341-346 
    Details
    ISSN: 1432-0649
    Schlagwort(e): 42.60 ; 34.50
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Saturation of two-dimensional laser-induced fluorescence is demonstrated using the coincidence between the strong 0–0 vibrational transition of OH around 308 nm and the emission of a tunable XeCl excimer laser. The 2D images were insensitive to variations in the laser power, implying reduced sensitivity to quenching processes. The ratio of the 2D images in the linear and saturated regimes show two-dimensional variations in the saturation intensity. Since saturation intensity is proportional to the quenching rate, this novel method allows one to check for variations in collisional lifetimes across the flame.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00325493
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Photon production in nucleon-nucleon collisions (1991)
    Springer
    The European physical journal 339 (1991), S. 391-398 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 14.80.Am ; 25.20.Gf ; 25.20.Lj
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract We calculate the differential cross section for nucleonnucleon bremsstrahlung in covariant way based on a realistic meson-exchange approximation for the NN-scattering amplitude. The results are discussed in comparison to semiclassical approximations and with respect to the role of internal radiation diagrams. The influence of the anomalous magnetic moment on the proton-neutron bremsstrahlung is found to contribute up to 50% for specific kinematical conditions. Recent measurements on the elementary differential cross sectionpn→pnγ are found to be quite accurately reproduced. Furthermore, for use in proton-nucleus and nucleus-nucleus collisions, we present a parametrization of thepnγ cross section within a broad kinematical range.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01560642
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
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