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Post-amplification of a gyrotron RF beam by a sheet electron beam

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dc.contributor.author Anastassiou, G en
dc.contributor.author Vomvoridis, JL en
dc.date.accessioned 2014-03-01T01:34:19Z
dc.date.available 2014-03-01T01:34:19Z
dc.date.issued 2010 en
dc.identifier.issn 0093-3813 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/20693
dc.subject Cyclotron radiation en
dc.subject Electron beams (e-beams) en
dc.subject Gyrotrons en
dc.subject Microwave devices en
dc.subject Microwave power amplifiers en
dc.subject.classification Physics, Fluids & Plasmas en
dc.subject.other E-beams en
dc.subject.other Electron motion en
dc.subject.other External magnetic field en
dc.subject.other Field amplitudes en
dc.subject.other Free space en
dc.subject.other Gaussian output en
dc.subject.other Gaussian profiles en
dc.subject.other High efficiency en
dc.subject.other High-current en
dc.subject.other High-power microwave source en
dc.subject.other Iterative schemes en
dc.subject.other Microwave power amplifier en
dc.subject.other Power levels en
dc.subject.other Radiation field en
dc.subject.other Rf-power en
dc.subject.other Sheet electron beams en
dc.subject.other Amplification en
dc.subject.other Cyclotron radiation en
dc.subject.other Cyclotrons en
dc.subject.other Electron beams en
dc.subject.other Electron optics en
dc.subject.other Electrons en
dc.subject.other Fusion reactors en
dc.subject.other Gyrotrons en
dc.subject.other Magnetic fields en
dc.subject.other Microwave amplifiers en
dc.subject.other Microwave generation en
dc.subject.other Microwave power transmission en
dc.subject.other Microwave tubes en
dc.subject.other Nonlinear feedback en
dc.subject.other Power amplifiers en
dc.subject.other Gaussian beams en
dc.title Post-amplification of a gyrotron RF beam by a sheet electron beam en
heal.type journalArticle en
heal.identifier.primary 10.1109/TPS.2010.2043689 en
heal.identifier.secondary http://dx.doi.org/10.1109/TPS.2010.2043689 en
heal.identifier.secondary 5443537 en
heal.language English en
heal.publicationDate 2010 en
heal.abstract The availability of high-power microwave sources like gyrotrons makes it now possible to use the Gaussian output RF beam of a conventional gyrotron propagating in free space as an input for the interaction with a sheet electron beam (e-beam) drifting along an external magnetic field, with the aim of generating even higher RF power. Since this interaction is from the beginning in the nonlinear high-efficiency regime, the corresponding field amplitude is adequate to extract a significant amount of power from the high-current e-beam with no need for feedback from the walls of any cavity or resonator. The radiation field excited by the nonlinear perturbed electron motion has been calculated using a self-consistent iterative scheme and is seen to maintain the basic features of the initial RF beam (such as the Gaussian profile), but at a much higher power level as is desired for a fusion reactor. © 2010 IEEE. en
heal.publisher IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC en
heal.journalName IEEE Transactions on Plasma Science en
dc.identifier.doi 10.1109/TPS.2010.2043689 en
dc.identifier.isi ISI:000281764600010 en
dc.identifier.volume 38 en
dc.identifier.issue 6 PART 1 en
dc.identifier.spage 1208 en
dc.identifier.epage 1218 en


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