High power microwave generation from a large orbit gyrotron*

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Title: High power microwave generation from a large orbit gyrotron*
Author: Lawson, W.; Destler, William; Striffler, C.D.
Abstract: A study of the production of high power microwave radiation from a large orbit gyrotron in azimuthally periodic boundary systems has been conducted. Linear growth rates have been calculated for the 2¿ modes of magnetron-like hole-and-slot resonator (HASR) and vane resonator (VR) systems using a general growth rate formalism. The experiment involves the interaction of a 2.3 MeV, 1-2 kA, 5 ns rotating electron layer with the HASR and VR structures. Maximum power levels are ~ 300 MW in X band from a 10 slot HASR system; ~ 500 MW in Ku band from a 20 slot VR system; and ~ 15 MW in K band from ~ 30 slot systems. The peak efficiency is ~ 15%. The radiation characteristics are in reasonably good agreement with the theoretical predictions. The reduced power levels for ~ 30 slot systems are partially attributed to radial mode competition.
Description: Copyright 1985 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Record URI: http://hdl.handle.net/1850/9802
Date: 1985-10

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