Plasma cathode for a short-pulse dielectric wall accelerator

J. R. Harris; B. Hickman; R. Anaya; E. G. Cook; S. Hawkins; C. Holmes; J. Stanley; J. Watson; George J Caporaso

doi:10.1109/TPS.2009.2019961

Plasma cathode for a short-pulse dielectric wall accelerator

J. R. Harris, B. Hickman, R. Anaya, E. G. Cook, S. Hawkins, C. Holmes, J. Stanley, J. Watson, George J Caporaso

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The Beam Research Program at Lawrence Livermore National Laboratory is continuing development of the dielectric wall accelerator (DWA), a type of accelerator which uses stacked pulse-forming lines (PFLs) to apply an accelerating field directly to the beam through a nonconducting vacuum boundary. Here, we report operation of a DWA as an electron diode using a surface flashover plasma cathode. Peak perveances in excess of 6 × 10^-6 A/V^3/2 were measured, with current extraction and pulse train format depending on flashover source timing and PFL switching speed.

Original language	English (US)
Pages (from-to)	1069-1077
Number of pages	9
Journal	IEEE Transactions on Plasma Science
Volume	37
Issue number	6 PART 2
DOIs	https://doi.org/10.1109/TPS.2009.2019961
State	Published - 2009
Externally published	Yes

Keywords

Accelerators
Electron guns
Particle sources
Plasma generation
Pulse power systems

ASJC Scopus subject areas

Condensed Matter Physics
Nuclear and High Energy Physics

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AU - Harris, J. R.

AU - Hickman, B.

AU - Anaya, R.

AU - Cook, E. G.

AU - Hawkins, S.

AU - Holmes, C.

AU - Stanley, J.

AU - Watson, J.

AU - Caporaso, George J

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Y1 - 2009

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AB - The Beam Research Program at Lawrence Livermore National Laboratory is continuing development of the dielectric wall accelerator (DWA), a type of accelerator which uses stacked pulse-forming lines (PFLs) to apply an accelerating field directly to the beam through a nonconducting vacuum boundary. Here, we report operation of a DWA as an electron diode using a surface flashover plasma cathode. Peak perveances in excess of 6 × 10-6 A/V3/2 were measured, with current extraction and pulse train format depending on flashover source timing and PFL switching speed.

KW - Accelerators

KW - Electron guns

KW - Particle sources

KW - Plasma generation

KW - Pulse power systems

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Plasma cathode for a short-pulse dielectric wall accelerator

Abstract

Keywords

ASJC Scopus subject areas

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