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  • 36.10.Gv  (1)
  • GEOPHYSICS  (1)
  • Nuclear reaction
  • Spacecraft Propulsion and Power
  • 1990-1994  (2)
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  • 1
    facet.materialart.
    Unknown
    Consistency of rocket and radar electron density observations - Implications about the anisotropy of mesospheric turbulence (1990)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Quantitative comparisons are made between rocketborne measurements of electron density fluctuations and simultaneous 53.5 MHz radar measurements obtained during the Summer in Northern Europe campaign. Rocketborne radar reflectivity results are of the order of 10 dB greater than would be expected in the case of isotropic electron density fluctuations. There results can be reconciled by assuming isotropic turbulence. A relation is derived between rocket and radar observations which covers the entire range from isotropic turbulent scatter to Fresnel scatter at horizontal density stratifications. The anisotropy is greatest at heights where the electron density displays deep 'bite-outs'.
    Keywords: GEOPHYSICS
    Type: Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169); 52; 855-873
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
    Electronic Resource
    Electronic Resource
    Absolute pionic x-ray intensities in Mg and Fe (1991)
    Springer
    The European physical journal 341 (1991), S. 101-105 
    Details
    ISSN: 1434-601X
    Keywords: 36.10.Gv
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Absolute pionic x-ray intensities have been measured for Mg and Fe. The accuracy achieved was 2% of the line intensity for the most prominent transitions. In the Balmer series of Mg and the Paschen series of Fe the crossover transitions were found to be even more attenuated than the transitions between circular states, as deduced, for example, by comparison with muonic atoms; no crossover transitions were observed in the Fe Balmer series. According to cascade calculations based on the experimental intensities more than half of the pions are absorbed in Fe already from levels with principal quantum numbern〉17 by strong interaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01281280
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    Paper (German National Licenses)
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