A preliminary analysis shows that radiation dose equivalent to 30 years in the geosynchronous environment can be accumulated in a typical composite material exposed to space for 2 years or less onboard a spacecraft orbiting from perigee of 300 km out to the peak of the inner electron belt (approximately 2750 km). Future work to determine spacecraft orbits better tailored to materials accelerated testing is indicated. It is predicted that a range of 10 to the 9th power to 10 to the 10th power rads would be accumulated in 3-6 mil thick epoxy/graphite exposed by a test spacecraft orbiting in the inner electron belt. This dose is equivalent to the accumulated dose that this material would be expected to have after 30 years in a geosynchronous orbit. It is anticipated that material specimens would be brought back to Earth after 2 years in the radiation environment so that space radiation effects on materials could be analyzed by laboratory methods.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Preliminary analysis of accelerated space flight ionizing radiation testing


    Contributors:
    Wilson, J. W. (author) / Stock, L. V. (author) / Carter, D. J. (author) / Chang, C. K. (author)

    Publication date :

    1982-01-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Preliminary Analysis of Accelerated Space Flight Ionizing Radiation Testing

    J. W. Wilson / L. V. Stock / D. J. Carter et al. | NTIS | 1982


    Ionizing Radiation in Space and Space Flights

    Y. G. Grigor'ev / V. I. Efimov / V. M. Petrov et al. | NTIS | 1972


    Ionizing radiation

    Roth, E. M. | NTRS | 1968


    Ionizing radiation

    Tobias, C. A. / Grigoryev, Y. G. | NTRS | 1975


    Preliminary Radiation Analysis of the Total Ionizing Dose for the Resource Prospector Mission

    Rojdev, Kristina / Tylka, Allan J. / Atwell, William | NTRS | 2015