Elsevier

Surface Science

Volume 93, Issue 1, 1 March 1980, Pages 1-8
Surface Science

Field desorption of common gases from iridium and tungsten

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Abstract

The technique of field desorption has been used to study adsorption and desorption of gases from field ion tips. The formal procedure of the experiments is quite similar to thermal flash desorption. Values for the desorption field and their change with coverage have been obtained. For H2/W a field adsorbed state could be detected. Time-of-flight analysis was applied to determine the desorbing species. The gas supply for field ion tips could be measured; it increases exponentially with the field.

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