Abstract: The present invention provides a plurality of fuel rods (10A-10D) containing fuel for use in nuclear fuel assembly (17), where an actinide-boron-containing compound or compounds (6B-6E) is used as a burnable poison and is distributed in the actinide fuel in a majority of fuel containing rods (10A-10C) in the assembly, and where boron or enriched boron is contained in more than 50% of the fuel rods in the assembly (17).

Abstract: The present invention provides a nuclear fuel assembly, where a boron-containing compound is used as a burnable poison and is distributed in a majority of the rods in the assembly. The assembly comprises a plurality of fuel rods, each fuel rod containing a plurality of nuclear fuel pellets, wherein at least one fuel pellet in more than 50% of the fuel rods in the fuel assembly comprises a sintered admixture of a metal oxide, metal carbide or metal nitride and a boron-containing compound.

Abstract: The present invention provides a nuclear fuel rod, assembly comprising an actinide nitride such as uranium nitride, suitable for use in nuclear reactors, including those based substantially on thermal fission, such as light and heavy water or gas-cooled nuclear reactors. The fuel contains nitrogen which has been isotopically enriched to at least about 50% 15N, most preferably above 95%. The fuel can be in the form of particles, pellets, in annular form or other forms having high surface to volume ratios.

Abstract: 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 temperature over 1850° C.

Abstract: The present invention provides a nuclear fuel assembly, where a boron-containing compound is used as a burnable poison and is distributed in a majority of the rods in the assembly. The assembly comprises a plurality of fuel rods, each fuel rod containing a plurality of nuclear fuel pellets, wherein at least one fuel pellet in more than 50% of the fuel rods in the fuel assembly comprises a sintered admixture of a metal oxide, metal carbide or metal nitride and a boron-containing compound.

Abstract: The invention relates to a flexible fitting solution for a portable device for inputting control signals to a peripheral unit, which includes a holding member designed to be attached to a hand of a user of the device so as to retain the device in a predetermined manner on the hand. The holding member comprises at least one elongated portion and at least one curved portion connected thereto. A side of the holding member that faces the user's hand when the device is attached to the hand includes a padding module. The padding module, in turn, includes at least one pad cushion adapted to fit the device to the user's hand. The padding module is removably fastened to the holding member by means of a set of fastening members, which secure the padding module in a fastened position. By selecting an appropriate padding module, each user of the device may obtain a good fit of the device onto his/her hand.

Abstract: The present invention provides a nuclear fuel comprising an actinide nitride such as uranium nitride, suitable for use in nuclear reactors, including those based substantially on thermal fission, such as light and heavy water or gas-cooled nuclear reactors. The fuel contains nitrogen which has been isotopically enriched to at least about 50% 15N, most preferably above 95%. The fuel can be in the form of particles, pellets, in annular form or other forms having high surface to volume ratios.

Abstract: A component (1) designed for use in a light water reactor and at least partly comprised by a metal and/or a metal alloy presents a coatings (4, 7) at its outer surface (3) and its inner surface(5). The coating (4 and 7 respectively) has as its task to protect the surface (3 and 5 respectively), against oxidation, corrosion, wear and hydration. The coating (4 and 7 respectively) suitably comprises at least one of zirconium dioxide (ZrO2) and zirconium nitride (ZrN).

Abstract: A component (1) designed for use in a light water reactor and at least partly comprised by a metal and/or a metal alloy presents a coatings (4, 7) at its outer surface (3) and its inner surface (5). The coating (4 and 7 respectively) has as its task to protect the surface (3 and 5 respectively) against oxidation, corrosion, wear and hydration. The coating (4 and 7 respectively) suitably comprises at least one of zirconium dioxide (ZrO2) and zirconium nitride (ZrN).

Abstract: A method and apparatus for determining the thickness of at least one layer superimposed on a substrate, at least one of the layers or the substrate being a conductor of electricity. The method includes the steps of generating an electromagnetic alternating field in the vicinity of the outer most layer with a coil in order to cause any currents to be generated in the conductor which act upon the alternating field. The frequency of the alternating field is adjusted to at least two different frequencies and is measured at these frequencies. The thickness of the layers is then determined based on the measurements and the electromagnetic properties of the substrate and the layers.

Abstract: In a control rod for nuclear reactors with elongated channels for boron carbide or other neutron-absorbing material which swells upon neutron irradiation, the neutron-absorbing material (20a), in at least some of the channels (18b), is provided with projecting portions (20a') or arranged in a casing with portions projecting towards the channel walls. Further, the projecting portions are adapted to form between them and the channel walls unfilled spaces (40) for taking up swelling neutron-absorbing material.