Vacuum electron tube with planar cathode based on nanotubes or nanowires
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United States of America Patent
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Jul 21, 2020
Grant Date -
Jan 11, 2018
app pub date -
Jun 29, 2017
filing date -
Jul 7, 2016
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Abstract
A vacuum electron tube comprises at least one electron-emitting cathode and at least one anode arranged in a vacuum chamber, the cathode having a planar structure comprising a substrate comprising a conductive material, a plurality of nanotube or nanowire elements electrically insulated from the substrate, the longitudinal axis of the nanotube or nanowire elements substantially parallel to the plane of the substrate, and at least one first connector electrically linked to at least one nanotube or nanowire element so as to be able to apply a first electrical potential to the nanowire or nanotube element.
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