Study of electron beam dynamics in a planar diode with explosive emission cathode

Author

Anishchenko, S. ; Baryshevsky, V. ; Gurinovich, A. ; Gurinovich, E. ; Gurnevich, E. ; Molchanov, P. ; Rovba, A.

Author_Institution

Res. Inst. for Nucl. Problems, Minsk, Belarus

fYear

2015

fDate

24-28 May 2015

Firstpage

1

Lastpage

1

Abstract

Summary form only given.Study of electron beam dynamics in a planar diode with explosive emission cathode is carried out both theoretically and experimentally. 3D simulation is made using an enhanced hybrid code [1] computing electron and plasma motion in different approximations: beam dynamics -in kinetic and plasma expansion - in hydrodynamic. Distributions of current density over the electron beam cross-section are simulated for different cathode shapes and cathode surface properties. Technique for detection and processing of electron beam imprints is developed. Beam imprints, as well as diode perveance and impedance curves are obtained for cathodes of different shapes and diameters. Cathode materials are also varied.

Keywords

cathodes; current density; current distribution; electron beams; electrons; hydrodynamics; plasma diodes; 3D simulation; cathode material; cathode surface property; current density distribution; diode perveance; electron beam cross-section; electron beam dynamics; electron beam imprint; explosive emission cathode; hybrid code computing electron; hydrodynamic; impedance curve; kinetic expansion; planar diode; plasma expansion; plasma motion; Cathodes; Dynamics; Electron beams; Explosives; Plasmas; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Sciences (ICOPS), 2015 IEEE International Conference on

Conference_Location

Antalya

Type

conf

DOI

10.1109/PLASMA.2015.7179865

Filename

7179865