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Digitale Medien

Grid-controlled plasma cathodes (1985)

Humphries, S. ; Coffey, S. ; Savage, M. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 57 (1985), S. 709-713

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Details

ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Experiments are described on a plasma cathode with biased grids to prevent entry of ions into the electron extraction gap. The cathode has potential applications to the generation of high-current pulsed electron beams. Operation at 20 A/cm2 is theoretically possible. The source combines the low average power consumption of a plasma cathode with many of the attractive features of thermionic cathodes, such as space-charge-limited extractor gap electron flow, fast turn-on, and no diode closure. Initial experiments are reported at the 2 A/cm2 level for pulse lengths to 160 μs.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.335479

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