Radiant energy – Electrically neutral molecular or atomic beam devices and...
Reexamination Certificate
2005-09-27
2005-09-27
Lee, John R. (Department: 2881)
Radiant energy
Electrically neutral molecular or atomic beam devices and...
Reexamination Certificate
active
06949735
ABSTRACT:
An object of the present invention is to provide a beam source capable of efficiently generating a high-density energy beam having good directivity and a relatively large beam diameter. The beam source of the present invention comprises a discharge tube; a gas inlet for introducing gas into the discharge tube; three electrodes mounted in the discharge tube downstream from the gas inlet, wherein the electrode on the upstream end has a plurality of openings through which the gas can pass, the middle electrode is a mesh-shaped electrode, and the electrode on the downstream end is a beam-emitting electrode having a plurality of beam-emitting holes and is disposed in a plane parallel to the middle electrode; plasma-generating means disposed between the two upstream electrodes on the outside of the discharge tube for transforming gas introduced into the discharge tube into plasma; and voltage-applying means for accelerating the beam between the two downstream electrodes and emitting the accelerated beam from the downstream beam-emitting electrode.
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Hatakeyama Masahiro
Ichiki Katsunori
Satake Tohru
Watanabe Kenji
Ebara Corporation
Johnston Phillip A.
Lee John R.
Westerman Hattori Daniels & Adrian LLP
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