An experimental investigation into the correlation between ion acoustic turbulence (IAT) and anomalous ion heating in the plume of a 100 A-class LaB 6 hollow cathode is presented. Laser-induced fluorescence is employed to measure the ion velocity distribution function, and a translating ion saturation probe is used to quantify the spatial dependence of the IAT wave energy. It is found that over a range of flow rates and operating currents both the ion temperature and IAT energy increase downstream of the cathode in qualitatively similar ways. Both parameters also are shown to be impacted by operating conditions: the IAT energy and ion temperature decrease at higher flow rates and lower discharge currents. It is shown that the ratio between ion temperature and wave energy is related by a scaling parameter that depends on the background plasma parameters, and this relation is examined in the context of previous analytical work on IAT-induced ion heating.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Ion Heating Measurements on the Centerline of a High-Current Hollow Cathode Plume


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2018-06-28


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Hollow Cathode Plume Velocity: Measurements and Modeling

    Crofton, Mark / Boyd, Iain | AIAA | 2002


    Local Neutral Density and Plasma Parameter Measurements in a Hollow Cathode Plume

    Jameson, Kristina / Goebel, Dan / Mikellides, Ioannis et al. | AIAA | 2006


    Laser-Induced Fluorescence Measurements of Driven High-Frequency Electrostatic Waves in a Hollow Cathode Plume

    Chaplin, Vernon H. / Byrne, Matthew / Butler-Craig, Naia et al. | AIAA | 2024


    Plasma Instabilities in the Plume of a Hollow Cathode

    Georgin, Marcel P. / Jorns, Benjamin A. / Gallimore, Alec | AIAA | 2018


    High current hollow cathode phenomena

    FRIEDLY, VERLIN / WILBUR, PAUL | AIAA | 1990