Search for dissertations about: "fissile material assay"

Found 4 swedish dissertations containing the words fissile material assay.

  2. 1. Generalised Campbell formulae for compound Poisson processes with applications in nuclear safeguards

    Author : Lajos Nagy; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; passive non-destructive assay; fissile material assay; multiplicity counting;

    Abstract : Multiplicity counting is a widely used non-destructive assay method for estimating unknown parameters (primarily the mass) of samples of spontaneously fissioning materials (e.g. plutonium). Traditionally, measurements are performed with thermal neutron detectors operating in pulse counting mode. READ MORE

  4. 2. Neutron Multiplicity Counting with the Analysis of Continuous Detector Signals

    Author : Lajos Nagy; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Kolmogorov equation; fissile material assay; nuclear safeguards; fission chamber; neutron multiplicity counting; master equation;

    Abstract : Neutron multiplicity counting is a non-destructive assay method for determining the mass of fissile materials (primarily plutonium) using the measured values of the singles, doubles and triples detection rates. Traditionally, the detection rates are obtained from the counting statistics of neutron detectors. READ MORE

  5. 3. Safeguards: Modelling of the Detection and Characterization of Nuclear Materials

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

    Abstract : Nuclear safeguards is a collective term for the tools and methods needed to ensure nonproliferation and safety in connection to utilization of nuclear materials. It encompasses a variety of concepts from legislation to measurement equipment. READ MORE

  6. 4. Studies of Nuclear Fuel by Means of Nuclear Spectroscopic Methods

    Author : Peter Jansson; Roland Carchon; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiation sciences; irradiated nuclear fuel; nuclear spectroscopy; tomography; safeguard; Strålningsvetenskap; Radiation biology; Strålningsbiologi; Kärnfysik; Nuclear Physics;

    Abstract : The increasing demand for characterization of nuclear fuel, both from an operator and authority point of view, motivates the development of new experimental and, preferable, non-destructive methods. In this thesis, some methods based on nuclear spectroscopic techniques are presented. READ MORE