Charged particle generation with a resonant electrical circuit
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United States of America Patent
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Aug 26, 1997
Grant Date -
N/A
app pub date -
Jul 22, 1994
filing date -
Nov 24, 1992
priority date (Note) -
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Abstract
Apparatus for generating a stream of charged particles, for example for use in an electron beam welding device. The apparatus includes a charged particle source (5) such as a filament and a target (6). The charged particle source (5) is connected in series with a resonant electrical circuit and the target is connected in parallel with the circuit. The source and target (5,6) are relatively juxtaposed such that under working conditions, when the circuit is in resonance, electric current passing through the source (5) causes emission of first charged particles and the potential difference between the source (5) and the target (6) accelerates the first charged particles towards the target.
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