DocumentCode :
1079939
Title :
Effects of a finite axial magnetic field on the beam loading of a cavity
Author :
Kowalczyk, Richard ; Lau, Yue Ying ; Gilgenbach, Ronald M.
Author_Institution :
Dept. of Nucl. Eng. & Radiol. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Volume :
51
Issue :
9
fYear :
2004
Firstpage :
1522
Lastpage :
1527
Abstract :
The effect of a finite axial magnetic field on the beam loading of a cavity is evaluated. The calculation extends Branch´s classic paper on ballistic bunching in that both the conductive and susceptive components of the beam-loaded admittance are computed, for general values of axial magnetic field. Also included is a comparison of the analytic formulation with a two-dimensional particle-in-cell simulation. This paper suggests that the finite axial magnetic field used in linear beam tubes (typically exceeding 1.5 × the Brillouin field) would only modify the beam-loaded admittance by about 20%, from that computed under the assumption of an infinite axial magnetic field.
Keywords :
cavity resonators; magnetic fields; microwave generation; particle beam bunching; Brillouin field; ballistic bunching; beam loading; beam-gap interaction; beam-loaded admittance; conductive components; finite axial magnetic field; linear beam tubes; susceptive components; Admittance; Educational institutions; Electron beams; Impedance; Magnetic analysis; Magnetic field measurement; Magnetic fields; Magnetic susceptibility; Microwave devices; Space charge; Beam-gap interaction; beam loading;
fLanguage :
English
Journal_Title :
Electron Devices, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9383
Type :
jour
DOI :
10.1109/TED.2004.833955
Filename :
1325858
Link To Document :
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