Sökning: "Nuclear physics"

Visar resultat 1 - 5 av 552 avhandlingar innehållade orden Nuclear physics.

  1. 1. A Tomographic Measurement Technique for Irradiated Nuclear Fuel Assemblies

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Staffan Jacobsson Svärd; Anders Bäcklin; Ane Håkansson; Klaas van der Meer; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; tomography; nuclear fuel; SPECT; core physics; validation; pin power; safeguards; partial-defect verification; Kärnfysik; NATURAL SCIENCES Physics Nuclear physics; NATURVETENSKAP Fysik Kärnfysik;

    Sammanfattning : The fuel assemblies used at the Swedish nuclear power plants contain typically between 100 and 300 fuel rods. An experimental technique has been demanded for determining the relative activities of specific isotopes in individual fuel rods without dismantling the assemblies. LÄS MER

  2. 2. Studies of Accelerator-Driven Systems for Transmutation of Nuclear Waste

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Marcus Dahlfors; Ane Håkansson; Alfred Hogenbirk; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; transmutation; accelerator-driven systems; Energy Amplifier; subcritical reactors; nuclear waste; Monte Carlo simulation; burnup; actinides; fission products; benchmark; nuclear data; neutron cross sections; sensitivity analysis; neutron source; spallation target; n_TOF experiment; neutron time-of-flight; cross section measurement; FLUKA; EA-MC; MCNP; MCNP-X; EADF; TRADE; Kärnfysik; NATURAL SCIENCES Physics Nuclear physics; NATURVETENSKAP Fysik Kärnfysik;

    Sammanfattning : Accelerator-driven systems for transmutation of nuclear waste have been suggested as a means for dealing with spent fuel components that pose potential radiological hazard for long periods of time. While not entirely removing the need for underground waste repositories, this nuclear waste incineration technology provides a viable method for reducing both waste volumes and storage times. LÄS MER

  3. 3. Nucleon-Induced Fission Cross Sections of Heavy Nuclei in the Intermediate Energy Region

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Alexander Prokofiev; [2001]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; Fission; cross section; n; f reaction; p; intermediate energy; database; nuclear reaction; neutron; Kärnfysik; NATURAL SCIENCES Physics Nuclear physics; NATURVETENSKAP Fysik Kärnfysik; Applied Nuclear Physics; tillämpad kärnfysik;

    Sammanfattning : Fission is the most important nuclear reaction for society at large today due to its use in energy production. However, this has raised the problem of how to treat the long-lived radioactive waste from nuclear reactors. LÄS MER

  4. 4. Neutron induced light-ion production from iron and bismuth at 175 MeV

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Riccardo Bevilacqua; Stephan Pomp; Magnus Wolke; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; neutron induced reactions; light-ion production; quasi-monoenergetic neutron beam; nuclear data; accelerator driven systems; NATURAL SCIENCES Physics Nuclear physics; NATURVETENSKAP Fysik Kärnfysik; Nuclear Physics; kärnfysik; Applied Nuclear Physics; tillämpad kärnfysik;

    Sammanfattning : Light-ions (protons, deuterons, tritons, 3He and α articles) production in the interaction of 175 MeV neutrons with iron and bismuth has been measured using the Medley setup at the The Svedberg Laboratory (TSL) in Uppsala. These measurements have been conducted in the frame of an international collaboration whose aim is to provide the scientific community with new nuclear data of interest for the development of Accelerator Driven Systems, in the range of 20 to 200 MeV. LÄS MER

  5. 5. The long-term nuclear explosives predicament : final disposal of military usable fissile material in nuclear waste from nuclear power and from the elimination of nuclear weapons

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Johan Swahn; [1992]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; plutonium economy; laser isotope separation; disposal; sustainability; plutinium; destruction; sustainable energy future; nuclear fuel cycle; Swedish; fissile material; spent nuclear fuel; transmutation; ethics; production; construction; high-level nuclear waste; nuclear weapons; nuclear explosives; military; long-term;

    Sammanfattning : .... LÄS MER