This invention relates to plasma torches in which, the gas entering the electrode holder is divided into a plasmagenic gas flow and into a cooling gas flow by two series of openings drilled in one and the same metal element forming the electrode holder.

The present invention relates to a plasma processor, and the plasma processor comprises a processing chamber, means to reduce a pressure in the processing chamber so as to evacuate the interior thereof, means to introduce a processing gas into the processing chamber, means to generate an electric field within the processing chamber, and means to establish a magnetic field orthogonal to the electric field, this means being rotatable relative to a surface to-be-processed of a sample which is proce...

Plasma apparatus comprises a vacuum vessel, a device for creating an open-ended magnetic field containing a plasma, a plurality of electrostatic plugs disposed at the open-ended portions of the magnetic field. At least one of the electrostatic plugs comprises a limiter attached to the vacuum vessel, provided with an inner hollow portion and arranged so as to confine the plasma, an anode electrode disposed at the open-ended portion and provided with an inner hollow portion extending along a direc...

A plasma generator comprises a metallic tube of small diameter inside which can circulate a gas such as argon at a small flow rate, which is discharged at the front end of the tube. The tube is coupled with an energizing structure which can comprise a frequency generator supplying electromagnetic microwave via a coaxial connection, a coupling structure allowing the transfer of the energy of the generator to the front portion of the metallic tube. In the absence of a gas current in the tube, the ...

In an improved plasma torch, a metal tube delivers a plasma-generating gas to an end discharge outlet. The delivery tube is excited by microwave energy by means of a waveguide of rectangular cross-section. The tube traverses the waveguide through openings of larger diameter than the delivery tube. Metal sleeves are advantageously provided around the tube on each side of the waveguide. Two gases can be delivered to the plasma within concentric tubes. The plasma-formation zone can be moved further...

A plasma transfer bag for containing plasma, the bag having a line of weakness extending from the top to the bottom of the bag, the bag being made from two sheets of translucent flexible material which is flexible at -40.degree. C., the sheets being welded together around the edges and across the bottom to provide plasma containment means, the sheets extending from the bottom weld to form an extension having a break therein, the bag may be held and pulled transversely to enable the bag to be tor...

Method and apparatus for dynamic stabilization of plasma instabilities for improving plasma confinement and for increasing plasma density independent of the phase of the instabilities. The method comprises confining the plasma column between ionizing plates which supply energetic particles to the plasma in a direction parallel to the axis of the plasma column and interacting the plasma in a predetermined direction with externally supplied radio-frequency fields having a selectively variable powe...

The invention relates to a plasma reactor including a housing which receives a selected gas flow, a microwave generator, and waveguide means to supply the microwaves to the housing according to a non-resonant coupling wherein the housing does not dissipate in the form of electromagnetic radition the ultrahigh frequence energy which is imparted to the housing in the presence of gas. According to a general definition of the invention, the housing being of a large size, the terminal portion of the ...

In accordance with the present invention, a composition and method is provided for extending the plasma of a human or animal. The method comprises injecting an admixture of an effective concentration of a surface-active copolymer and an effective concentration of a plasma extender into an human or animal. Plasma extenders that can be used in the present invention include, but are not limited to, dextran, hydroxyethyl starch, hemoglobin and albumin. The surface-active copolymer can be an ethylene...

A plasma reactor, of the type comprising an enclosure capable of receiving a gas flow, a generator of high-frequency electromagnetic waves and means for the non-resonant coupling of the generator with the enclosure, the coupling means including at least one horn with widening having an essentially rectangular cross-section, with its two walls perpendicular to the direction of the electrical field moving away angularly from each other, the two walls parallel to the direction of the electrical fie...