NDLI: A high performance grid-controlled electron gun

Content Provider	IEEE Xplore Digital Library
Author	Zhou suiming Wang hongcheng Zhang junhong Li hongtao
Copyright Year	2004
Description	Author affiliation: Beijing Vacuum Electron. Res. Inst., China (Zhou suiming; Wang hongcheng; Zhang junhong; Li hongtao)
Abstract	High performance grid-controlled electron gun is the base of modern high power and broadband traveling-wave-tubes. We have developed a shadow grid electron gun, its perveance can be more than 1.6 micro-perveance. The parameters and diagram of the gun is given in this article. Better tactical performance, better anti-interference performance, good mobility are the important conditions for radar to alive. High power traveling-wave-tubes are the key device of the radar; they need high output power, flexible modulation method, and small permanent magnetic focusing system. Accordingly the electron gun of high power TWT should provide high perveance electron beam and should be shadow grid controlled. This article introduces a shadow grid controlled electron gun, the cathode voltage is 26kV, and the perveance can be up to 1.6 micro perveance. The calculated electron trajectories by the 2D compute program are shown. The affect of the circular wires of the shadow grid and the control grid to the moving of the electrons are taken into account during calculation. The shielding factor due to radial grid wires has also been considered.
Starting Page	305
Ending Page	306
File Size	81460
Page Count	2
File Format	PDF
ISBN	0780384377
DOI	10.1109/IVESC.2004.1414249
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electron beams Wires Magnetic devices Radar Modems Magnetic modulators Voltage control Power generation Cathodes Testing
Content Type	Text
Resource Type	Article

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