| http://www.w3.org/ns/prov#value | - The electron source may be operated at a discharge current effective to produce a current to the worktable 22 which may be five times greater or more, including all increments or ranges there, such as 8 times greater or more, 10 times greater or more, etc., relative to the current to the worktable 22 produced in the absence of the electron source.
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