Induced nuclear reactions: processes, systems, and elements inventions 10/06

20060227920 - Hybrid stoichiometric analysis and imaging using non-thermal and thermal neutrons: An apparatus and method for analyzing and imaging chemical compounds within a test subject uses subatomic particle activation. The test subject (and chemical compounds contained therein) is irradiated by non-thermal neutrons, thereby generating thermal neutrons within the test subject and stimulating the emission of gamma rays. Gamma ray detectors detect...

20060227921 - Method of delivering a tool into a submerged bore: A method for delivery of a tool into a submerged bore includes controlling the movement of a tool delivery device in the pool by operating at least one propulsion drive located on the tool delivery device. The tool delivery device is coupled to an inlet to the bore and a...

20060227922 - In-situ bwr and pwr crud flake analysis method and tool: The invention provides a method and tool to perform an analysis of CRUD on a nuclear fuel rod. The method recites providing a nuclear fuel rod with a layer of CRUD on an exterior of the fuel rod, scraping the CRUD from the fuel rod with a CRUD scraping tool...

20060227923 - Nuclear fuel assembly low pressure drop top nozzle: A top nozzle is for a fuel assembly of a nuclear reactor. The top nozzle includes a plate portion having a first plurality of apertures structured to receive guide thimbles of the fuel assembly and second and third pluralities of apertures which comprise first and second coolant holes structured to...

20060227924 - High heat flux rate nuclear fuel cladding and other nuclear reactor components: Structural forms, such as cladding for nuclear fuel (57) held within a supporting grids (54) within the environment of an aqueous cooled nuclear reactor vessel (32) housing a reactor core, where at least some of the structural forms are coated with or made from a ceramic having a melting point...

20060227925 - Four point contact structural spacer grid: A four point contact grid for a nuclear fuel assembly, that is structured to engage at least one generally cylindrical fuel rod. The four point contact grid includes a plurality of elongated, generally flat straps including a first set of straps and a second set of straps, each strap having...

20060222138 - Working device and working method: A working apparatus has: a working equipment for doing works on a structure; an operation mechanism adapted to actively move the working equipment relative to the structure; and an adhering/traveling module coupled to the operation mechanism and adapted to adhere to the structure so as to have the weight of...

20060222139 - Methods for demonstrating moderator exclusion for nuclear criticality safety: Disclosed are methods for assuring that requirements for fissile material transportation are met to comply with the double contingency principle for preventing nuclear criticality by excluding moderator in-leakage. In one embodiment, a method includes designing and fabricating a canister to achieve an acceptable application, and verifying pre-shipment operation to assure...

20060222140 - Eccentric support grid for nuclear fuel assembly: In a nuclear reactor fuel assembly structured to support at least one non-linear fuel rod, the nuclear reactor fuel assembly includes at least two support grids, a first support grid and a second support grid structured to support at least one fuel rod in a non-linear shape. Each support grid...