Title :
Generation narrow focusing beams in plasma cathode electron guns
Author :
Rempe, N.G. ; Kornilov, S.Y. ; Osipov, I.V.
Author_Institution :
Tomsk State Univ. of Control Syst. & Radioelectron., Tomsk, Russia
Abstract :
The work purpose is producing of the focused electron beam with minimal diameter and divergence in a plasma cathode gun. Researches of influence of an emitting plasma surface position in electron-optical system of a gun on electron beam parameters are executed. The measurement technique of current density distribution is developed. For the first time in system with the plasma emitter beams with energy 30-60 keV, power about some kilowatt, with diameter of the order 250 microns and a divergence no more than 0,05 degrees are received.
Keywords :
current density; electron beam effects; electron guns; plasma guns; plasma-beam interactions; current density distribution; divergence; electron beam parameters; electron volt energy 30 keV to 60 keV; electron-optical system; focused electron beam; generation narrow focusing beams; plasma cathode electron guns; plasma emitter beams; plasma surface position; size 250 micron; Cathodes; Electron guns; Focusing; Laser excitation; Particle beams; Plasmas; Trajectory;
Conference_Titel :
High Power Particle Beams (BEAMS), 2008 17th International Conference on
Conference_Location :
Xian
