Control of the Electron Beam Density Distribution on the Collector in Sources with a Grid Plasma Cathode Based on a Low-Pressure Arc.

Autor: Koval, T. V., Shin, V. I., Vorobyov, M. S., Moskvin, P. V., Devyatkov, V. N., Koval, N. N.
Zdroj: Bulletin of the Russian Academy of Sciences: Physics; 2023 Suppl 2, Vol. 87, pS310-S317, 8p
Abstrakt: An experimental and theoretical study is carried out to control the distribution of electron beam current density in a SOLO source with a plasma cathode based on a low-pressure arc discharge with grid stabilization of the emission plasma boundary. It has been shown experimentally and numerically that using a control electrode in the form of a disk (disks) in the plasma cathode and a leading magnetic field, it is possible to change the distribution of the emission current density and, accordingly, the energy density of the electron beam on the collector. Theoretical study using the envelope method, "particle-in-cells" method and drift-diffusion models shows good agreement with experiment. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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