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Simulations of magnetic priming in a relativistic magnetron
Jones, M.C. Neculaes, V.B. White, W.M. Lau, Y.Y. Gilgenbach, R.M. Luginsland, J.W. Pengvanich, P. Jordan, N.M. Hidaka, Y. Bosman, H.L.
Dept. of Nucl. Eng. & Radiol. Sci., Univ. of Michigan, Ann Arbor, MI, USA;

This paper appears in: Electron Devices, IEEE Transactions on
Publication Date: May 2005
Volume: 52, Issue: 5
On page(s): 858- 863
ISSN: 0018-9383
INSPEC Accession Number: 8397808
Digital Object Identifier: 10.1109/TED.2005.845856
Current Version Published: 2005-04-25

Abstract
Two-dimensional simulations have been performed on a six-vane relativistic magnetron with uniform axial magnetic fields versus azimuthally varying axial magnetic fields, defined as magnetic priming. Electron phase-space plots show rapid growth of the π-mode when the axial magnetic field has three-azimuthal perturbations: it takes 36 ns for the π-mode to dominate in the uniform magnetic field case versus only 13 ns for the π-mode to dominate in the case with magnetic priming imposed. RF electric field plots versus time show the suppression of the 2π/3-mode when magnetic priming is imposed.

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