Magnetron cathodes
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United States of America Patent
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Nov 3, 2015
Grant Date -
Jul 31, 2014
app pub date -
Sep 13, 2013
filing date -
Sep 13, 2012
priority date (Note) -
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Abstract
A magnetron cathode comprises electron emissive material included in a cathode body and a support structure for supporting the cathode body. The support structure has a longitudinal axis and includes a first part having a first cylinder integrally formed with a first end hat and a second part having a second cylinder integrally formed with a second end hat. The first cylinder and the second cylinder have an overlapping region in the longitudinal axial direction and are joined together. The cathode body is located around the first cylinder of the first part of the support structure and is joined to the first cylinder by a brazed joint. The outer surface of the first cylinder is grooved at the brazed joint.
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