Title :
Numerical and experimental study of helical electron beams in millimeter wave range powerful gyrotrons
Author :
Kuftin, A.N. ; Belov, S.P. ; Lugin, V.K. ; Postnikova, A.S. ; Venediktov, N.P. ; Zapevalov, V.E.
Author_Institution :
Inst. of Appl. Phys., Acad. of Sci., Nizhny Novgorod, Russia
Abstract :
The basic properties of helical electron beams (HEB) formed in the magnetron-injection gun (MIG) of powerful multimeter wave range gyrotrons are investigated. Guns for 1 MW power level 83, 110, 140 and 170 GHz gyrotrons, forming quasilaminar, regularly intersecting, mixed and boundary (between quasilaminar and regularly intersecting) HEB are considered. Evolution of the electron oscillatory velocities distribution function has been traced. Influence of the reflected electrons on beam parameters are studied experimentally
Keywords :
electron beams; electron guns; gyrotrons; millimetre wave tubes; 1 MW; 110 GHz; 140 GHz; 170 GHz; 83 GHz; electron oscillatory velocity distribution function; electron reflection; helical electron beam; magnetron injection gun; millimeter wave gyrotron; Cathodes; Electron beams; Electron traps; Guns; Gyrotrons; Magnetic analysis; Magnetic fields; Magnetic properties; Magnetic separation; Numerical simulation;
Conference_Titel :
Electronics and Radiophysics of Ultra-High Frequencies, 1999. International University Conference Proceedings
Conference_Location :
St Petersburg
Print_ISBN :
5-7422-0083-8
DOI :
10.1109/UHF.1999.787896
