Large area electron source
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United States of America Patent
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Jun 15, 2004
Grant Date -
Apr 3, 2003
app pub date -
Oct 2, 2002
filing date -
Oct 3, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
By using a large area cathode, an electron source can be made that can irradiate a large area more uniformly and more efficiently than currently available devices. The electron emitter can be a carbon film cold cathode, a microtip or some other emitter. It can be patterned. The cathode can be assembled with electrodes for scanning the electron source.
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