Motion of a virtual cathode in a cylindrical channel with electron beam transport in the "compressed" state

S. Ya Belomyttsev, A. A. Grishkov, I. K. Kurkan, R. V. Tsygankov

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper studies the motion of a virtual cathode in a two-section drift tube with the formation and breakup of the "compressed" state of an electron beam. Experimental arrangements to intercept part of the injected current during the voltage pulse and to provide virtual cathode motion toward the collector are proposed. The arrangements were implemented on the SINUS-7 high-current electron accelerator. Theoretical and experimental dependences of the virtual cathode velocity on the injected current and cathode voltage are presented. The experimental data on virtual cathode motion agree with its theoretical model based on analytical solutions of equations assisted by computer simulation with the PIC code KARAT. The results of the work demonstrate the feasibility of controlling the virtual cathode motion which can be used in collective ion acceleration and microwave generation.

Original languageEnglish
Article number033102
JournalPhysics of Plasmas
Volume21
Issue number3
DOIs
Publication statusPublished - Mar 2014

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cathodes
electron beams
electron accelerators
electric potential
accumulators
high current
computerized simulation
tubes
microwaves
pulses
ions

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Motion of a virtual cathode in a cylindrical channel with electron beam transport in the "compressed" state. / Belomyttsev, S. Ya; Grishkov, A. A.; Kurkan, I. K.; Tsygankov, R. V.

In: Physics of Plasmas, Vol. 21, No. 3, 033102, 03.2014.

Research output: Contribution to journalArticle

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