Vacuum-chamber breakdown and current collection experiments are performed to determine the discharge characteristics of the SPEAR I rocket experiment's high-voltage (HV) systems exposed to the space environment. Large-scale diffuse volume discharges are observed under high-vacuum conditions, regardless of the presence of an ionospheric magnetoplasma. The major difference is that in the presence of plasmas the time to breakdown is dramatically decreased. This breakdown is attributed to the simultaneous presence of magnetic fields, nonuniform electric fields, and the chamber walls. Under these conditions electrons can be E*B trapped inside the chamber, which leads to an increase in the electron-initiated breakdown. Breakdown suppression techniques utilizing low voltage grids are successfully tested and discussed.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Vacuum-chamber testing of space-exposed SPEAR-I HV components


    Weitere Titelangaben:

    Experimente mit Vakuumkammer-Durchbruch und Stromanhäufung für eine Rakete


    Beteiligte:
    Antoniades, J. (Autor:in) / Alport, M. (Autor:in) / Boyd, D. (Autor:in) / Ellis, R. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1990


    Format / Umfang :

    5 Seiten, 3 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch






    Rebuilding the Spear

    T. S. Page | NTIS | 2003


    Bale spear device

    BURENGA THOMAS I | Europäisches Patentamt | 2018

    Freier Zugriff

    Skid steer bale spear

    BURENGA THOMAS I | Europäisches Patentamt | 2016

    Freier Zugriff