Title :
Conceptual design study of a gyrotron with an axis encircling electron beam
Author :
Sabchevski, S. ; Idehara, T. ; Ogawa, I. ; Glyavin, M. ; Mitsudo, S. ; Ohashi, K. ; Kobayashi, H.
Author_Institution :
Res. Center for Dev. of Far-Infrared Region, Fukui Univ., Japan
Abstract :
In this paper, we present results of numerical experiments performed as a part of a conceptual design study of a large orbit gyrotron (LOG) with an axis-encircling electron beam formed by a novel electron gun with permanent magnet system. The results of simulations indicate the feasibility of a compact LOG with low current and low accelerating voltage operating on TE/sub 41/ mode at fourth harmonic. The required magnetic field is produced by NdFeB permanent magnet and additional coils for fine tuning of the field strength at the gun and cavity regions.
Keywords :
electron guns; gyrotrons; axis encircling electron beam; electron gun; electron optical design; fourth harmonic mode; large orbit gyrotron; magnetic field; numerical simulation; permanent magnet system; Acceleration; Electron beams; Electron guns; Frequency; Geometry; Gyrotrons; Magnetic analysis; Magnetic fields; Particle beams; Permanent magnets;
Conference_Titel :
Infrared and Millimeter Waves, 2000. Conference Digest. 2000 25th International Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6513-5
DOI :
10.1109/ICIMW.2000.893029
