TITLE

On the hysteresis at ion extraction in the single-grid ion source

AUTHOR(S)
Rafalskyi, D. V.; Dudin, S. V.
PUB. DATE
August 2010
SOURCE
Applied Physics Letters;8/2/2010, Vol. 97 Issue 5, p051501
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The ion extraction in the single-grid ion source with a woven extraction grid is researched. It has been found experimentally that the extraction can occur in “low current” and “high current” modes with stepwise hysteretic transitions between them. The assumption has been made that the existence of the two extraction regimes can be explained by the existence of two kinds of the space charge sheaths near the grid wires. This assumption is confirmed by the estimations of the sheath depth for the cylindrical and plane geometries.
ACCESSION #
52802652

 

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