Title :
Gyrotron electron gun and collector simulation with the ESRAY beam optics code
Author :
Illy, Stefan ; Jianghua Zhang ; Jelonnek, John
Author_Institution :
Inst. for Pulsed Power & Microwave Technol. (IHM), Karlsruhe Inst. of Technol. (KIT), Karlsruhe, Germany
Abstract :
The KIT two-dimensional beam optics code ESRAY is an efficient tool for the design and optimization of magnetron injection guns and collectors of gyrotrons or comparable vacuum tubes. The applied numerical methods and latest modifications and enhancements will be presented. To achieve more realistic results, a new emitter surface roughness model and the treatment of secondary electrons has been implemented recently. An extension to three dimensions (without taking space-charge effects into account) permits the simulation of various collector sweeping concepts, including the very efficient transverse sweeping.
Keywords :
electron guns; gyrotrons; magnetrons; secondary electron emission; ESRAY beam optics code; KIT two-dimensional beam optics code; collector simulation; collector sweeping; emitter surface roughness; gyrotron electron gun; magnetron injection guns; secondary electrons; transverse sweeping; vacuum tubes; Cavity resonators; Electron beams; Gyrotrons; Load modeling; Optics; Rough surfaces; Surface roughness; collector; collector sweeping; electron beam optics; gyrotron; magnetron injection gun; secondary emission;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2015 IEEE International
Print_ISBN :
978-1-4799-7109-1
DOI :
10.1109/IVEC.2015.7223779
