Multibeam electronic tube with magnetic field for correcting beam trajectory
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United States of America Patent
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Nov 26, 2002
Grant Date -
N/A
app pub date -
Jan 3, 2001
filing date -
Jul 3, 1998
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Abstract
A multibeam electron tube with several approximately parallel electron beams passing through a body. Among the beams, at least some define an interbeam volume, each beam defining the interbeam volume being subjected to a perturbing azimuthal magnetic field induced by all the other beams. The tube includes an element allowing, in at least one conducting element located in the interbeam volume, flow of a reverse current in the opposite direction to that of the current of the beams, this reverse current generating, in the beams defining the interbeam space, a magnetic correction field whose purpose is to oppose the perturbing magnetic field. Exemplary embodiments of the present invention especially apply to the multibeam klystrons or traveling wave tubes.
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