Search for dissertations about: "nuclear safeguards"

Showing result 11 - 15 of 22 swedish dissertations containing the words nuclear safeguards.

  2. 11. Investigation of a Methodology for the Detection of Diversions in Spent Nuclear Fuel

    Author : Moad al-Dbissi; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; flux gradient detector; artificial neural networks; partial defects; neutron scintillator; spent nuclear fuel; nuclear safeguards; machine learning;

    Abstract : One of the main tasks in nuclear safeguards is the inspection of Spent Nuclear Fuel (SNF) to detect possible diversions of their special nuclear material content, e.g., U-235 and Pu-239. These inspections verify the declared SNF via passive measurements of characteristic signatures such as the emissions of neutrons and gamma rays. READ MORE

  4. 12. Proliferation resistances of Generation IV recycling facilities for nuclear fuel

    Author : Matilda Åberg Lindell; Sophie Grape; Ane Håkansson; Staffan Jacobsson Svärd; Roland Carchon; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; safeguards; proliferation resistance; Generation IV; reprocessing; Fysik med inriktning mot tillämpad kärnfysik; Physics with specialization in Applied Nuclear Physics;

    Abstract : The effects of global warming raise demands for reduced CO2 emissions, whereas at the same time the world’s need for energy increases. With the aim to resolve some of the difficulties facing today’s nuclear power, striving for safety, sustainability and waste minimization, a new generation of nuclear energy systems is being pursued: Generation IV. READ MORE

  5. 13. Tomographic Techniques for Safeguards Measurements of Nuclear Fuel Assemblies

    Author : Tobias Lundqvist Saleh; Uppsala universitet; []
    Keywords : ;

    Abstract : Nuclear power is currently experiencing increased interest over the world. New nuclear reactors are being built and techniques for taking care of the nuclear waste are being developed. This development puts new demands and standards to safeguards, i.e. READ MORE

  6. 14. Nuclear safeguards evaluation and analysis techniques for application to nuclear fuel material in Generation IV nuclear energy systems

    Author : Matilda Åberg Lindell; Sophie Grape; Ane Håkansson; Peter Andersson; Juhani Hyvärinen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fysik; Physics;

    Abstract : A new generation of nuclear energy systems called Generation IV is under development to ensure that nuclear power will be a safe, reliable and sustainable energy source for the future. This thesis addresses the challenge of making future nuclear energy systems increasingly resistant to nuclear material diversion attempts. READ MORE

  7. 15. The Statistics of Emission and Detection of Neutrons and Photons

    Author : Andreas Enqvist; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multiplicities; nuclear safeguards; Number distribution; scintillation detectors; light pulse distribution; fissile material; cross correlations;

    Abstract : One particular purpose of nuclear safeguards, in addition toaccounting for known materials, is the detection, identifying and quantifying unknown material, to prevent accidental and clandestine transports and uses of nuclear materials. This can be achieved in a non-destructive way through the various physical and statistical properties of particle emission and detection from such materials. READ MORE