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

Результат исследований: Материалы для журналаСтатья

2 Цитирования (Scopus)

Аннотация

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.

Язык оригиналаАнглийский
Номер статьи033102
ЖурналPhysics of Plasmas
Том21
Номер выпуска3
DOI
СостояниеОпубликовано - мар 2014

ASJC Scopus subject areas

  • Condensed Matter Physics

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