Hysteresis and Virtual Cathode Formation in Electron Beams

Hysteresis and Virtual Cathode Formation in Electron Beams

An investigation is reported of virtual cathode formation and hysteresis effects in electron beams produced by microwave low-noise electron guns in the presence of a strong longitudinal magnetic field. It is shown that, contrary to earlier suggestions, positive ions are not necessary for the formati...

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Veröffentlicht in:Int. J. Electron., 21: 51-62(July 1966) 21: 51-62(July 1966), 1966-07, Vol.21 (1), p.51-62
Hauptverfasser: CZARCZYNSKI, W., RYLEY, J. E., GAMBLING, W. A.
Format: Artikel
Sprache:eng
Schlagworte:
CATHODES
CURRENTS
ELECTRIC CHARGES
ELECTRON BEAMS
HYSTERESIS
N32210 -Physics-Atomic & Molecular Physics-Atomic, Electron, Ion & Molecular Beams & Reactions
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Beschreibung
Zusammenfassung:An investigation is reported of virtual cathode formation and hysteresis effects in electron beams produced by microwave low-noise electron guns in the presence of a strong longitudinal magnetic field. It is shown that, contrary to earlier suggestions, positive ions are not necessary for the formation of a hysteresis loop but they may greatly affect its size. Under certain conditions more than one virtual cathode may form, giving rise to additional effects.
ISSN:0020-7217
1362-3060
DOI:10.1080/00207216608937897