Sökning: "fissile material assay"
Hittade 4 avhandlingar innehållade orden fissile material assay.
1. Generalised Campbell formulae for compound Poisson processes with applications in nuclear safeguards
Sammanfattning : 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. LÄS MER
2. Neutron Multiplicity Counting with the Analysis of Continuous Detector Signals
Sammanfattning : 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. LÄS MER
3. Safeguards: Modelling of the Detection and Characterization of Nuclear Materials
Sammanfattning : 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. LÄS MER
4. Studies of Nuclear Fuel by Means of Nuclear Spectroscopic Methods
Sammanfattning : 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. LÄS MER