First experiments with e−/H− plasmas: Enhanced centrifugal separation from diocotron mode damping

First experiments with e−/H− plasmas: Enhanced centrifugal separation from diocotron mode damping

Negative hydrogen ions are produced and contained within a room-temperature electron plasma, by dissociative electron attachment onto exited H2 neutrals. We observe a strongly enhanced centrifugal separation of electrons and ions when a diocotron mode is present. The outward ion transport rate is pr...

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Bibliographische Detailangaben
Hauptverfasser: Kabantsev, A. A., Thompson, K. A., Driscoll, C. F.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Damping
Electron attachment
Electron plasma
Hydrogen ions
Ion transport
Separation
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Beschreibung
Zusammenfassung:Negative hydrogen ions are produced and contained within a room-temperature electron plasma, by dissociative electron attachment onto exited H2 neutrals. We observe a strongly enhanced centrifugal separation of electrons and ions when a diocotron mode is present. The outward ion transport rate is proportional to the diocotron mode amplitude, with concurrent diocotron mode damping. This is not yet understood theoretically.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5021573