Abstract Among cosmic rays, the heavy nuclei ranging from carbon to iron provide the principal contribution to the dose equivalent. The LET-distributions and absorbed dose and dose equivalent have been calculated and are presented as a function of shielding and tissue self-shielding. At solar minimum, outside the magnetosphere, the unshielded dose equivalent of nuclei with atomic number Z ≥ 6 is about 47 rem/year. The contribution of the target nuclei adds 7 rem/year. With 4 g/cm2 aluminum shielding, and at a depth of 5 cm in a biological phantom of 30 cm diameter, the respective values are 11 and 10 rem/year. Corresponding dose rates for orbits with various inclinations are presented, as well as the LET distributions of various components of cosmic rays.


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    Titel :

    LET-distributions and doses of HZE radiation components at near-earth orbits


    Beteiligte:
    Silberberg, R. (Autor:in) / Tsao, C.H. (Autor:in) / Adams, J.H. Jr (Autor:in) / Letaw, J.R. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 4 , 10 ; 143-151


    Erscheinungsdatum :

    01.01.1984


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch