Formation and Transportation of an Intense Sub-Millisecond Electron Beam in a Longitudinal Magnetic Field in the Source with a Mesh Plasma Cathode

The limiting parameters of an intense sub-millisecond electron beam generated in the source with a plasma cathode on the basis of a low-pressure multi-arc discharge with mesh stabilization of the cathode (emission) plasma boundary and mobile anode (beam) plasma boundary are investigated. It is demon...

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Bibliographic Details
Published in:Russian physics journal 2017-12, Vol.60 (8), p.1386-1391
Main Authors: Vorobyov, M. S., Devyatkov, V. N., Koval, N. N., Sulakshin, S. A.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANODES
Breakdown
CATHODES
Condensed Matter Physics
Constraining
Electric arcs
ELECTRIC DISCHARGES
ELECTRIC POTENTIAL
Electric strength
ELECTRICAL FAULTS
Electrodes
ELECTRON BEAMS
ELECTRON SOURCES
Electrons
Emission analysis
ENERGY ACCOUNTING
Hadrons
Heavy Ions
Lasers
MAGNETIC FIELDS
Mathematical and Computational Physics
Nuclear Physics
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
PLASMA
PRESSURE RANGE KILO PA
Theoretical
Transportation
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Summary:The limiting parameters of an intense sub-millisecond electron beam generated in the source with a plasma cathode on the basis of a low-pressure multi-arc discharge with mesh stabilization of the cathode (emission) plasma boundary and mobile anode (beam) plasma boundary are investigated. It is demonstrated that the limiting parameters of the electron beam in the examined electrode system are limited by its energy content on a level of about 4 kJ the excess of which leads to an electric breakdown of the accelerating gap. The optimal pressures are determined at which the beam during its transportation in the longitudinal magnetic field with a preset configuration has maximal parameters for the given electrode system. Different mechanisms of electric breakdown initiation and methods for increasing the electric strength of the high-voltage accelerating gap in this electrode system are discussed.
ISSN:1064-8887
1573-9228
DOI:10.1007/s11182-017-1226-0