The cumulative fraction of the displacement damage dose deposited in shielded GaAs solar cells in typical space proton environments is presented as a function of energy from the threshold for atomic displacement up to 400 MeV. Results are presented for silica cover glass thicknesses from 3-30 mils, and for both slowed down and incident proton energies. As an example, it is found that for cells shielded by 30 mils of coverglass in a circular 5000 km orbit, less than 15% of the degradation is caused by protons with slowed down energies <0.1 MeV, whereas 50% of the total degradation is produced by protons in the energy range 1


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    Title :

    Contribution of low-energy protons to the degradation of shielded GaAs solar cells in space


    Contributors:


    Publication date :

    1997


    Size :

    7 Seiten, 9 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English