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The simulation of an high power 390GHz large-orbit harmonic gyrotron

By: Ronald, K.; Donaldson, C.R.; Cross, A.W.; Phelps, A.; Wenlong He; Fengping Li; Whyte, C.G.;

2008 / IEEE / 978-1-4244-1715-5

Description

This item was taken from the IEEE Conference ' The simulation of an high power 390GHz large-orbit harmonic gyrotron ' This paper presents the design and simulation of a 390 GHz harmonic gyrotron operating with a TE71 mode at the 7th electron cyclotron harmonic of a large orbit electron beam from a cusp electron gun. The electron beam has an energy of 40 keV, beam current of 1.5 A, an adjustable pitch alpha from 1 to 2 with a minimum beam velocity spread and scalloping in the beam trajectory. Interaction region based on cylindrical waveguide with smooth inner surface and slotted structures have been studied. Theoretical analysis and numerical simulation results of this source operating at THz frequencies are presented.