AbstractThe Liulin dosimeter-radiometer on the MIR space station detected the 19 October 1989 high energy solar proton event. These results show that the main particle increase contains protons with energies up to about 9 GeV. After the main particle onset the Liulin dosimeter observed a typical geomagnetic cut-off modulation of the dose rate from the solar particles as the MIR space station traversed magnetic latitudes. When the interplanetary shock and associated solar plasma enveloped the earth on 20 October between 14 and 17 UT the radiation exposure increased significantly due to the lowering of the geomagnetic cutoff. The analysis of this event shows how various geophysical phenomena can significantly modulate the dose rate encountered by earth-orbiting spacecraft.


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    Titel :

    The dose rate observed on 19–21 October 1989 and its modulation by geophysical effects


    Beteiligte:
    Smart, D.F. (Autor:in) / Shea, M.A. (Autor:in) / Dachev, Ts.P. (Autor:in) / Bankov, N.G. (Autor:in) / Petrov, V.M. (Autor:in) / Bengin, V.V. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 14 , 10 ; 651-654


    Erscheinungsdatum :

    1994-01-01


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch