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[en] Integral to the current UMo fuel foil processing scheme being developed at Idaho National Laboratory (INL) is the incorporation of a zirconium barrier layer for the purpose of controlling UMo-Al interdiffusion at the fuel-meat/cladding interface. A hot 'co-rolling' process is employed to establish a ∼25-(micro)m-thick zirconium barrier layer on each face of the ∼0.3-mm-thick U10Mo fuel foil.
[en] We describe the first tests with a new proportional gas detector. Its geometry consists of slits opened in a copper metallized kapton foil with 30 μm anode strips suspended in these openings. In this way, the multiplication process is similar to a standard MSGC. The fundamental difference is the absence of an insulating substrate around the anode. Also the material budget is significantly reduced, and the problems related to charging-up or polarization are removed. Ageing properties of this detector are under study
[en] It is proposed to register the instant of termination of the electrolytic thinning-down of a foil designed for translucent electron-microscope studies with the help of a radiometer. In this case it will be possible to use not only the light source but also sources of low-intensity soft β- and γ-radiation to register the moment of termination of the thinning-down process
[en] For characterization of targets and foils prepared at the target laboratory as well as for characterization of e.g. degrader or windows of internal customers, different analytical devices are available. Besides a lot of standard equipment, the target laboratory of GSI holds a 3D-measurement system (MicroProf®) equipped with optical sensors for measuring surface parameters as well as total thickness variations contact-free. In the paper the measuring principle including the possibilities and features of the MicroProf®-system are explained and some different applications are shown.
[en] The aluminium-uranium alloy is prepared by uranium alloying of high-purity molten aluminium, which produces the intermetallic UAl3 phase. The alloy is poured at a temperature of 800 degC into a horizontal mould to preclude gravitational separation of uranium during solidification. In order to achieve a homogeneous distribution of UAl3 the ingot is annealed at a temperature of 550 degC for three hours and is then quenched in water. The foil is first hot rolled at a temperature between 450 and 480 degC and then cold rolled to a thickness of 0.05 mm. During the rolling process a 50% deformation takes place after which intermediate annealing follows at a temperature of 480 degC for 20 mins. The achievement of the new method is an easier production of foils than with the use of pure uranium and the high corrosion resistance of the uranium-aluminium alloy foil. (Ha)
[en] The experimental set-up and conditions for preparing self-supporting metallic platinum targets by electrodeposition are described in this paper. Results will be given on the influence of deposition time and current density. The yield of about 20% is better than in the case of evaporated targets
[en] This paper contains description and user's guide for computer code for processing data obtained by measuring the activity of irradiated foils. Activity of foils is measured by automated devices used at the Nuclear engineering laboratory of the Vinca Institute of nuclear science. Procedure for measuring by the automated device is explained in order to enable direct application of the obtained values as input data in the computer code
[sr]U radu je dat opis i uputstvo za koriscenje programa za obradu podtaka dobijenih merenjem aktivnosti folija na automatskom uredjaju koji se koristi u laboratoriji za nuklearnu energetiku i tehnicku fiziku u Institutu za nuklearne nauke 'Boris Kidric' u Vinci. U vezi sa koriscenjem programa, objasnjen je i nacin na koji treba vrsiti merenja na automatskom uredjaju, da bi dobijeni podaci mogli direktno da se koriste kao ulazne vrednosti. (author)