Cathode cup improvement
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United States of America Patent
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-
Sep 19, 1989
Grant Date -
N/A
app pub date -
Mar 19, 1987
filing date -
Mar 19, 1987
priority date (Note) -
Expired
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Abstract
A cathode electrode improvement is disclosed which utilizes a front focus slot having a diverging cross-sectional area to focus an electron beam within an x-ray tube to provide a high emission, small area focal spot.
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