Mounting apparatus for induction coupled plasma torch

• Main Author: GAGNE; PETER H
• Format: Patent
• Language: English
• Published: 20.07.1999
• Edition: 6
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS; TESTING

In a mounting apparatus for an induction coupled plasma generator, a housing assembly has a receptacle with a central opening aligned over a housing wall opening, electrical contact rings in the receptacle, and a gas block with a central aperture aligned with the openings. An outer passage in the gas block receives a plasma forming gas and extends to the central aperture. A mounting assembly has a mounting member with an annular contact ring, a second gas block, and a gas tube and a sample tube extending from the second gas block. The second gas block has an inner passage extending into the gas tube. The mounting assembly removably engages to the housing assembly, with the mounting member on the receptacle, the second gas block in the first gas block, and the rings in contact. The tubes extend to a load coil for the plasma, and the passages align to convey the plasma forming gas into the gas tube. Provision is made for axial adjustment of the mounting assembly to position the tubes axially with respect to the coil.