Judicious shielding strategies incorporated in the initial spacecraft design phase for the purpose of minimizing deleterious effects to onboard systems in intense radiation environments will play a major role in ensuring overall mission success. In this paper, we present parametric shielding analyses for the three Jupiter Icy Moons, Callisto, Ganymede, and Europa, as a function of time in orbit at each moon, orbital inclination, and various thicknesses, for low- and high-Z shielding materials. Trapped electron and proton spectra using the GIRE (Galileo Interim Radiation Electron) environment model were generated and used as source terms to both deterministic and Monte Carlo high energy particle transport codes to compute absorbed dose as a function of thickness for aluminum, polyethylene, and tantalum. Extensive analyses are also presented for graded-Z materials. Radiation absorbed doses presented in this paper can be utilized by the system designer in the electronic parts selection process.


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    Titel :

    Parametric Shielding Strategies for Jupiter Magnetospheric Missions


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Atwell, Bill (Autor:in) / Bartholet, Bill (Autor:in) / Reddell, Brandon (Autor:in) / Anderson, Brooke (Autor:in) / Nealy, John (Autor:in) / Townsend, Lawrence W. (Autor:in) / Clowdsley, Martha (Autor:in) / Miller, Thomas (Autor:in)

    Kongress:

    International Conference On Environmental Systems ; 2005



    Erscheinungsdatum :

    2005-07-11




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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