NDLI: An Improved Treatment of AC Space Charge Fields in Large Signal Simulation Codes

Content Provider	IEEE Xplore Digital Library
Author	Dialetis, D. Chernin, D. Antonsen, T.M. Levush, B.
Copyright Year	2006
Description	Author affiliation: Sci. Applications Int. Corp. (Dialetis, D.; Chernin, D.; Antonsen, T.M.)
Abstract	An accurate representation of the AC space charge electric field is required in order to be able to predict the performance of linear beam tubes, including TWTs and klystrons, using a steady state simulation code like CHRISTINE (Antonsen Jr and Lebush, 1997). The model implemented in the current release version of CHRISTINE is based on the assumption that the space charge reduction factor R is insensitive to axial wavenumber k, for a small range of k near $k_{b}$ equiv $omega/v_{b},$ where omega is the circular frequency of the wave and $v_{b}$ is the beam velocity. This assumption is usually a good one, but we have found cases in which the variation of R with k must be taken into account. We show how this can be done, and illustrate the effect in an example
Starting Page	439
Ending Page	440
File Size	1030340
Page Count	2
File Format	PDF
ISBN	1424401089
DOI	10.1109/IVELEC.2006.1666371
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-04-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space charge Predictive models Electric fields Frequency Klystrons Steady-state Maxwell equations Boundary conditions Current density Plasma waves simulation space charge field reduction factor bunching
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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