Charged particle accelerator

Details Charged particle accelerator Charged particle accelerator

2009-02-18

2011-11-29

Vu, David Hung (Department: 2821)

Electric lamp and discharge devices: systems

High energy particle accelerator tube

C315S506000

Reexamination Certificate

active

08067907

ABSTRACT:
In a charged particle accelerator, voltage of several tens of kV is applied between accelerating electrodes. In such a case, electric discharge is sometimes generated between the accelerating electrodes. In the charged particle accelerator, part or entirety of the accelerating electrodes is coated with an electric discharge suppressing layer made of ceramics or alloy having a high melting point as compared with metal. When impurity fine particles are accelerated by an electric field and collide with the electrodes, the electric discharge suppressing layer made of ceramics or alloy prevents metal vapor from being easily generated from the electrodes and an ionized plasma from being easily produced, thus suppressing electric discharge between the electrodes.

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Japanese Office Action issued in Japanese Patent Application No. JP 2008-035441 dated Apr. 13, 2010.
Japanese Office Action issued in Japanese Patent Application No. JP 2010-115882 dated Aug. 3, 2010.

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