Time characteristics of a pulse electron source, which operates in fore-vacuum pressure range

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Authors: Medovnik A. V., Pozdeev E. E.

Annotation: The back ion stream from secondary plasma, which is formed in the area of beam transportation, makes considerable impact on time characteristics of a discharge ignition of a plasma electron source, which operates in fore-vacuum pressure range (5 – 15 Pa). Also back ion stream influences on electrical strength of an acceleration gap and the maximum parameters of an electron beam.

Keywords: hollow cathode discharge, fore-vacuum, pulse electron source, back ionic stream