Patent ID: 7871679

Claim:
A method for the production of a coating comprising a non-vaporising getter metal alloy on an inner wall of a high-vacuum vessel to be coated, the getter metal alloy comprising at least one getter metal having a melting point above 1,500° C. and a vaporisation temperature above 3,000° C., and the method comprising the following method steps: ignition of a light arc between a cathode wire wound on an insulator rod comprising a getter metal alloy and an anode member by means of a high-voltage ignition pulse, continuing conversion of the cathode wire into a getter metal alloy plasma while maintaining a metal plasma light arc between the cathode wire and a cage-shaped anode member spatially surrounding the cathode wire, wherein the metal plasma arc rotates about the insulator rod as the cathode wire is used up, plasma coating, under a high vacuum, of the inner wall of the high-vacuum vessel to be coated, gas-tight closure of the coated ultra-high-vacuum vessel after coating.