Sökning: "pulsed neutron source"

Visar resultat 6 - 8 av 8 avhandlingar innehållade orden pulsed neutron source.

  1. 6. Development and Investigation of Reactivity Measurement Methods in Subcritical Cores

    Författare :Johanna Wright; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; source modulation method; point kinetics; core loading; reactivity measurement; Feynman-alpha formulae; Accelerator Driven Systems ADS ; subcritical cores;

    Sammanfattning : Subcriticality measurements during core loading and in future accelerator driven systems have a clear safety relevance. In this thesis two subcriticality methods are treated: the Feynman-alpha and the source modulation method. LÄS MER

  3. 7. Characterisation of mechanical and thermal properties of tungsten for high power spallation target applications

    Författare :Jemila Habainy; Materialteknik; []
    Nyckelord :Utmattning; Termisk diffusivitet; Volfram; Spallation; Strålningseffekter; ESS; Oxidation; Mekaniska egenskaper; Mechanical Properties; Thermal diffusivity; Tungsten; ESS; Spallation target; Irradiation effects; Fatigue; Oxidation;

    Sammanfattning : The European Spallation Source (ESS), which is currently under construction in Lund, will use pure tungsten as the spallation neutron target. The tungsten will be irradiated by a 2 GeV proton beam, pulsed at a repetition rate of 14 Hz. LÄS MER

  4. 8. Coil Design for a Mirror Based Fusion-Fission Reactor

    Författare :Anders Hagnestål; Uppsala universitet; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : The SFLM Hybrid project aims to show that it is probable that a fusion-fission reactor can be constructed with a single-cell minimum B mirror machine as a neutron source. In this licentiate thesis, theoretical work has been done with the magnetic coil system of such a device and also with the overall concept. LÄS MER