Filament emission | Article about filament emission by The Free Dictionary
filament emission[′fil·ə·mənt i′mish·ən]
Liberation of electrons from a heated filament wire in an electron tube.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The filament emission
current must be feedback-loop stabilized for repeatable measurements, and the electrometer must be able to accurately measure ion currents down to the x-ray limit of your BAGs.