A unibody, monolithic, one-piece PBN plasma chamber for an MBE gas plasma source. The chamber has a cylindrical configuration with at least one effusion orifice and a gas inlet opening. The gas inlet opening is preferably communicatively connected to an elongated, tubular inlet member. The inlet member is preferably coupled to a liquid cooled gas source by an intermediary connection member which is preferably constructed of a refxactory metal. The chamber minimizes leakage and maximizes efficien...

To improve a solar energy installation for chemical conversions comprising a receiver assembly for solar radiation and a chemical reactor which is supplied with solar radiation energy by the receiver assembly and in which chemical reactions take place due to the action of the solar radiation energy, such that optimum coupling of the solar radiation energy into the reactor is possible and, in addition, the reactor design is as simple and variable as possible and the reactor is connectable to the ...

An apparatus for producing hydrogen radicals, includes (a) a pipe having a cross-sectional area decreasing toward one end from the other thereof, the pipe being composed of metal having a high melting point, (b) a filament for generating heat by running an electrical current therethrough, the filament being disposed in the pipe free of contact with the pipe, and (c) a hydrogen gas source for supplying hydrogen gas to the pipe through the end of the pipe with the larger cross-sectional area. The ...

A weakly ionized plasma is generated by continuous high-power microwave win a dielectric cavity positioned in a slow waveguide. Contaminated air under atmospheric pressure is exposed to the plasma within the waveguide cavity for a limited saturation time controlled by inflow at a regulated flow rate. During such limited saturation time, the contaminated air is purified by sequential ionization and recombination under an electron temperature resulting in a microwave discharge plasma dominated by ...

This invention relates to an improved cooling system for a reactor having ultraviolet (UV) lamps, the radiation from which treats a fluid medium, for example, water, air or solvent. More particularly, the reactor system is adapted to treat contaminants in the fluids by use of UV emitting lamps which operate at high temperatures normally in excess of 300.degree. C.

A modification assembly for a semiautomatic firearm includes a sear disconnector, a hammer catch and a fire control selector that cooperate in enabling the weapon to be selectively fired in either a fully automatic or semiautomatic mode of operation. The sear disconnector prevents the sear piece from catching the hammer during counterrecoil of the bolt if the trigger piece is fully depressed and is carried by and movable with the trigger. The hammer catch is spring biased to a position at which ...

Thermal degradation of compound single crystal substrates (e.g., InP) containing a relatively volatile element (e.g., P) prior to LPE growth has been virtually eliminated by an improved protection technique. A partial pressure of the volatile element is provided by a solution (e.g., Sn-In-P) localized inside a chamber which is external to the LPE boat and which surrounds substrate prior to growth, thereby preventing thermal damage to the substrate surface. Applicability of the technique to other...

A system for separating constituents from a base material using RF energy which is coupled to a reaction chamber by way of a windowless transmission line. By eliminating the need for a window, traditional limitations placed on the maximum power delivered to the resonating cavity are eliminated. Thus, the only practical limitation on the RF energy which can be delivered to a resonating cavity are the ability of RF energy source to produce that energy and the ability of the resonating cavity to ma...

An incandescent Waste disposal system and method for the processing of waste and for rendering a hazardous component of the waste nonhazardous without discharge of harmful emissions are provided. The system includes a waste processing chamber, typically segmented into several sectors, wherein the waste is thermally and mechanically decomposed into a harmless residue by the action of rollers and an unrestricted arc plasma cloud that has a temperature sufficient to decompose the waste and render t...

An apparatus having a first and second zones, for destroying hazardous compounds of a first and second types respectively present in a gas stream. The first zone has a first live electrode and a ground electrode. The first live electrode and the ground electrode define a first gas passage. These electrodes are excitable at a first energy level for generating a first electric field capable of generating a plasma in a gas flowing through the first gas passage. The second zone has a second live ele...