Equator-S was a low cost mission designed to study the earth's equatorial magnetosphere at distances between 500 km and 67000 km. On board of the Equator-S spacecraft there was a solar cell diagnostic (SCD) experiment consisting of 2x4 mini-modules mounted on two panels located on opposite sides of the lower circumferential surface of the satellite body. For each panel the temperature and the sun aspect angle was measured as well as IV-characteristics by 16 different loads applied consecutively between 506.0 mS and 13.3 mS for each module. Despite the fact that the Equator-S spacecraft went out of control after 5 months in space, the SCD experiment yielded useful results. Exposed to a heavily loaded multi-energetic particle environment in a highly eccentric orbit, the degradation behaviour of different cell and coverglass types could be studied. Of special interest was the degradation behaviour of CuInSe2 thin film solar cells. The predicted high radiation tolerance could be proven for covered solar cells. A sensitivity against low energy radiation at very high fluences was found on bare cells. Very high radiation tolerance was found for the cascade solar cells made by molecular beam epitaxy confirming the results of former electron irradiation tests. This cell type was current limited by the GaInP2 top cell. Therefore, the degradation observed was mainly that of the top cell. The GaAs solar cells behaved as expected. The specified remaining factors could be confirmed within the tolerances of the equivalent fluence model applied. As far as the different types of coverglass are concerned, the newly developed CMO-coverglass demonstrated the same stability of the optical characteristics as the standard CMG-coverglass. For Si-NRS/BSF solar cells, data could be obtained for the open circuit voltage only. The degradation of this parameters confirms the specified values of the manufacturer.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Evaluation of the flight data of the equator-S mini-modules


    Beteiligte:
    Roche, G. la (Autor:in) / Hoesselbarth, B. (Autor:in) / Bogus, K. (Autor:in)


    Erscheinungsdatum :

    2000


    Format / Umfang :

    6 Seiten, 10 Bilder, 5 Tabellen, 7 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Structural development of Equator-S

    Stoecker, J. et al. / European Space Agency / Centre national d'etudes spatiales et al. | British Library Conference Proceedings | 1996


    Dieselized sisters "Ecuador" and "Equator"

    Joseph, J. | Engineering Index Backfile | 1952


    Ford Studie : SUV Konzept Equator

    Dunker,H. / Ford Motor,US | Kraftfahrwesen | 2005


    Structural development of Equator-S

    Stoecker, J. et al. | British Library Online Contents | 1996


    Suzuki Equator RMZ-4 Sport

    Harwood, Allyson | Online Contents | 2009