Abstract: A charge storage device of the type in which a target electrode provides a plurality of spatially distributed charge storage sites formed on an output side of a semiconductor wafer with means associated with the storage sites for sensing and converting the charge on the storage sites into an electrical signal. Input excitation is directed onto the other or input side of the semiconductor wafer and may be in the form of electrons or light capable of generating electron-hole pairs within the semiconductor wafer which diffuse through to the storage sites. The output side of the semiconductor wafer is provided with an apertured insulating layer with a reading electron beam making contact through the apertures in the insulating coating to the spatially distributed storage sites.

Abstract: A temperature compensated inductive liquid metal level detection system and a preferred probe structure is detailed. The temperature compensation is provided by provision of a separate temperature compensation coil as part of the inductive probe.

Abstract: A gas discharge tube for efficiently generating ultraviolet radiation, which is transmitted through a portion of the tube envelope for spectrographic use. The tube is filled with hydrogen or deuterium at a low pressure. The tube envelope is formed of a glass envelope which has a cylindrical envelope portion about the anode and cathode discharge path which is circumferentially thinned to from about 0.005 inch to 0.020 inch.

Abstract: An improved seal structure for an electrical penetration in which at least one conductor is sealed within a tubular metal enclosure member by a compressive setting resinous potting material. A seal shroud extends from the interior surface of the metal enclosure member and acts as the seal surface against which the resin forms a compressive seal, as well as against the conductor member. An annular foraminous reinforcing member extends from the free end of the seal shroud to provide an increased strength seal.

Abstract: A proportional counter neutron detector in which the neutron absorptive material is isolated from the poly-atomic fill gas by a thin film of selected metal or metal oxide, which is substantially transmissive to neutrons, and is non-reactive with the dissociation products of the poly-atomic fill gas.

Abstract: An electrodeless discharge lamp system which is adaptable to an atomic absorption spectroscopy unit which is designed for hollow cathode discharge device operation.

Abstract: A high current shorting switch wherein relatively movable contacts are surrounded by a flexible bellows which forms a hermetically sealed chamber, within which the contacts are disposed. The contacts are supported on heavy current carrying supports which terminate in two large end plates. Insulated holes are formed in one of the end plates which engage rods extending from the other plate to provide guidance for relative movement of the two end plates. An annular ring is disposed within the flexible bellows to prevent or limit current flow through the flexible bellows. The flexible bellows are coated with a protective coating which substantially increase the life of the bellows. The contact surfaces are preferably formed from a material having good weld break characteristics, such as copper bismuth while the contact supports and the end plates are formed from a material which is a good electrical conductor, such as copper.

Abstract: A power vacuum fuse using coaxial electrodes with the fuse length disposed therebetween. In one embodiment of the invention a larger diameter outer cylinder is partially disposed around a hollow inner cylinder within an evacuated chamber and the fuse links are connected from the inner cylinder to the outer cylinder. The inner cylinder can have spiral or slots formed therein to move the arc as desired. In another embodiment of the invention a solid inner cylinder is disposed within a hollow diameter outer cylinder, which can form or be directly connected to a metallic enclosure. Current paths can be provided into the solid inner cylinder from both ends, thus substantially increasing the current carrying capacity of a given size vacuum fuse. In yet another embodiment of the invention a hollow inner cylinder is partially disposed within a larger diameter outer cylinder.

Abstract: A multipiece reinforcing ring for a color television picture tube shadow mask. A plurality of elongated pieces are rigidly connected at their end portions to form a rectangular back ring.

Abstract: An improved precoat layer of highly insoluble, low molecular weight polyvinyl alcohol is uniformly thinly dispersed and dried upon the interior surface of a television picture tube faceplate panel. The precoat is applied by a slurry process with the aqueous slurry containing a predetermined amount of the normally soluble, low molecular weight polyvinyl alcohol and with the material being rendered highly insoluble by adjusting the pH value of the aqueous slurry to a value of less than about 3. The uniformly dispersed and dried precoat provides a highly adherent layer on the glass faceplate panel and the subsequently deposited phosphor pattern is highly adherent to this layer.

Abstract: An easily replaceable acoustic transducer assembly is provided for usage in high temperature applications. The improved structure permits efficient acoustical coupling between the component parts of the tranducer assembly, and is more readily reproducible in sensitivity and frequency response. A generally tubular high temperature resistant metal enclosure is provided with an acoustical window which is coupled to the piezoelectric transducer element. The piezoelectric element is acoustically coupled to a damping block member. Acoustical coupling between the active elements of the transducer assembly is had from a compressive means integral within the enclosure member.