Title :
Analysis of a large-orbit backward wave oscillator
Author :
Choyal, Y. ; Watanabe, Toshio ; Minami, Kazuyuki ; Granatstein, V.L.
Author_Institution :
Graduate Sch. of Sci. & Technol., Niigata Univ., Japan
Abstract :
Summary form only given, as follows. The effect of finite axial magnetic field on excitation of a backward wave oscillator (BWO) is investigated. The driver beam is assumed to be a mono-energetic helical electron beam with all the constituent electrons having their gyration centers on the axis of the slow wave structure (SWS). Such a beam supports negative energy fast cyclotron modes (FCMs) that can excite structure modes in the SWS. This may contribute to microwave generation in the BWO, which is solely due to the Cherenkov mechanism.
Keywords :
backward wave oscillators; electron tubes; microwave generation; slow wave structures; BWO; Cherenkov mechanism; finite axial magnetic field; large-orbit backward wave oscillator analysis; microwave generation; monoenergetic helical electron beam; negative energy fast cyclotron modes; slow wave structure; Boundary conditions; Cities and towns; Current density; Cyclotrons; Data analysis; Electron beams; Frequency estimation; Magnetic fields; Oscillators; Physics;
Conference_Titel :
Plasma Science, 2003. ICOPS 2003. IEEE Conference Record - Abstracts. The 30th International Conference on
Conference_Location :
Jeju, South Korea
Print_ISBN :
0-7803-7911-X
DOI :
10.1109/PLASMA.2003.1228627
