DocumentCode :
1436992
Title :
Basic theoretical formulation of plasma microwave electronics. II. Kinetic theory of electron beam-wave interactions
Author :
Shenggang, Liu ; Barker, Robert J. ; Yan Yung ; Dajun, Zhu
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Volume :
28
Issue :
6
fYear :
2000
fDate :
12/1/2000 12:00:00 AM
Firstpage :
2152
Lastpage :
2165
Abstract :
For pt.I see ibid., vol.28, no.6, p.2135-51 (2000) Building upon the theoretical foundations presented in Part I of this paper, the kinetic theory of electron-beam-wave interactions in a magnetized plasma-filled waveguide (MPW) is presented in this second part. This kinetic theory treatment is more generally applicable to cases of less-intense electron-beams (Montgomery and Tidman, 1964). The dispersion relations for longitudinal and transverse interactions, in both smooth and corrugated waveguides, are all derived by using kinetic theory to model the e-beam dynamics. This includes kinetic theory treatments of the plasma filled electron cyclotron resonance maser (ECRM) and a combination of Cherenkov-cyclotron resonance phenomena. It is important to note that in an MPW, transverse interactions (e.g., ECRM interactions) are always coupled with longitudinal interactions. Using the kinetic treatment is essential for studying the ECRM because its energy conversion mechanism is based on azimuthal phase bunching and finite Larmor radius effects. The dispersion relation that we derive shows that the presence of a plasma-fill tends to increase the growth rate of the waveguide mode ECRM instability
Keywords :
backward wave oscillators; cyclotron masers; dispersion relations; electron beam effects; plasma filled waveguides; plasma kinetic theory; plasma-beam interactions; travelling wave tubes; Cherenkov-cyclotron resonance phenomena; azimuthal phase bunching; basic theoretical formulation; dispersion relations; electron beam-wave interactions; electron cyclotron resonance maser; finite Larmor radius effects; kinetic theory; longitudinal interactions; magnetized plasma-filled waveguide; plasma microwave electronics; transverse interactions; Charge carrier processes; Cyclotrons; Dispersion; Electrons; Kinetic theory; Masers; Plasma waves; Resonance; Waveguide components; Waveguide theory;
fLanguage :
English
Journal_Title :
Plasma Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-3813
Type :
jour
DOI :
10.1109/27.902242
Filename :
902242
Link To Document :
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