Self-consistent post-amplification of a gyrotron RF beam by a sheet electron beam

Anastasiou, GE; Vomvoridis, JL

dc.contributor.author	Anastasiou, GE	en
dc.contributor.author	Vomvoridis, JL	en
dc.date.accessioned	2014-03-01T02:50:53Z
dc.date.available	2014-03-01T02:50:53Z
dc.date.issued	2006	en
dc.identifier.issn	0094243X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35179
dc.subject	Electron-beam radiation	en
dc.subject	Gyrotrons	en
dc.subject	Rf amplification	en
dc.title	Self-consistent post-amplification of a gyrotron RF beam by a sheet electron beam	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1063/1.2158789	en
heal.identifier.secondary	http://dx.doi.org/10.1063/1.2158789	en
heal.publicationDate	2006	en
heal.abstract	The availability of high power gyrotrons makes it possible to use the Gaussian output RF beam as input for the interaction with a sheet electron beam, with the aim of generating even higher RF power. Since this interaction is from the beginning in the high-efficiency nonlinear regime, it can proceed without the need of a resonator and without the restrictions of mode competition inherent in a quasi-optical gyrotron arrangement. The nonlinearly perturbed electron trajectories have been tabulated, as function of field amplitude and frequency mismatch, as the first step to an iterative self-consistency scheme. In addition, the radiation fields from the nonlinearly perturbed electrons are calculated, under an assumed longitudinal profile of the RF fields. This second step is to be repeated, until convergence is achieved. The first results show that the radiated fields indeed have a Gaussian cross-section, so that it can be reasonably expected that they can add constructively to the initial input. © 2005 American Institute of Physics.	en
heal.journalName	AIP Conference Proceedings	en
dc.identifier.doi	10.1063/1.2158789	en
dc.identifier.volume	807	en
dc.identifier.spage	279	en
dc.identifier.epage	284	en