Title :
Improvement of electron beam quality and gyrotron efficiency by optimization of electric field distribution in the gun region
Author :
Louksha, Oleg I. ; Samsonov, Dmitriy B. ; Sominski, G.G. ; Syomin, Sergey V.
Author_Institution :
St. Petersburg State Polytech. Univ., St. Petersburg, Russia
Abstract :
A technique for controlling electric field distribution in the near-cathode region of a magnetron-injection gun has been developed. The possibility to improve the quality of the helical electron beam by regulated non-uniformity of electric field is studied experimentally and using computer modelling. This technique is applied to enhance the efficiency of a 74.2 GHz, 100 kW gyrotron.
Keywords :
cathodes; electric fields; electron beams; electron guns; gyrotrons; magnetrons; millimetre wave tubes; computer modelling; electric field distribution optimization; electron beam quality; frequency 74.2 GHz; gyrotron efficiency; helical electron beam quality; magnetron-injection gun; near-cathode region; power 100 kW; Cathodes; Electric fields; Electric potential; Electron beams; Gyrotrons; Voltage control;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665437
