Coaxial gyrotron cavities with resistive corrugated insert for powerful second-harmonic operation

Avramides, KA; Vomvoridis, JL; Iatrou, CT

dc.contributor.author	Avramides, KA	en
dc.contributor.author	Vomvoridis, JL	en
dc.contributor.author	Iatrou, CT	en
dc.date.accessioned	2014-03-01T02:50:19Z
dc.date.available	2014-03-01T02:50:19Z
dc.date.issued	2006	en
dc.identifier.issn	0094243X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35058
dc.subject	Corrugated coaxial insert	en
dc.subject	Gyrotrons	en
dc.subject	Second harmonic	en
dc.subject	Submillimeter-wave sources	en
dc.title	Coaxial gyrotron cavities with resistive corrugated insert for powerful second-harmonic operation	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1063/1.2158787	en
heal.identifier.secondary	http://dx.doi.org/10.1063/1.2158787	en
heal.publicationDate	2006	en
heal.abstract	A coaxial gyrotron cavity with a longitudinally corrugated insert, which is resistive rather than highly conductive, can affect the starting currents of its resonant modes through the manipulation of the ohmic part of their quality factors. With an appropriate choice of the corrugation depth, powerful and efficient operation at the second cyclotron harmonic employing a high-order mode (eigenvalue ∼ 100), seems feasible in the sense that the mode-selection ability of the cavity is oriented towards the suppression of the competing modes that interact at the fundamental cyclotron frequency. This is illustrated by a realistic design of a 340 GHz - 100 kW CW second-harmonic TE40,15 coaxial gyrotron with interaction efficiency ∼ 30%. © 2005 American Institute of Physics.	en
heal.journalName	AIP Conference Proceedings	en
dc.identifier.doi	10.1063/1.2158787	en
dc.identifier.volume	807	en
dc.identifier.spage	264	en
dc.identifier.epage	270	en