Gas ion gun
AssigneesCentre National De La Recherche Scientifique, Universite D'Aix-Marseille
InventorsEvelyne Salançon, Alain Degiovanni, Laurent Lapena, Roger Morin
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Abstract
A gas ion gun includes an anode electrode to remove electrons from a gas in order to create gas ions. The anode electrode includes a wire made of an electrical conductive material or of a semiconductor material, the wire extending along a longitudinal axis from a proximal end to a flattened distal end. The anode electrode further includes a crystal particle directly deposited on the flattened distal end, the electrical conductivity of the crystal particle being ten times smaller than the electrical conductivity of the wire.
Claims11
A gas ion gun comprising:
- a main chamber in which is introduced a gas to be ionized,
- an anode electrode to remove electrons from the gas in order to create gas ions, the anode electrode comprising a wire made of an electrical conductive material or of a semiconductor material, the wire extending along a longitudinal axis from a proximal end to a flattened distal end and the flattened distal end being housed inside the main chamber,
- a cathode to create an ionizing electric field which is greater than 10V/nm in a region near the flattened distal end of the wire,
- wherein the anode electrode further comprises a crystal particle directly deposited on the flattened distal end, the electrical conductivity of the crystal particle being ten times smaller than the electrical conductivity of the wire.
Dependencies are inferred from the claim text.