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Incorporating statistical uncertainty into nuclear material diversion pathway analysis using probabilistic risk assessment

Creator:: Pharn, Benjamin T.
Abstract:: A Level 1 probabilistic risk assessment (PRA) is applied to a plutonium button-making process, but in regards to the risk of diversion (or theft) of special nuclear material (SNM) rather than the risk of mechanical failure. The main objective of the project was to identify the relative vulnerability of areas...
Resource Type:: Masters Thesis
Full Text:: button- making process, but in regards to the risk of diversion (or theft) of special nuclear material

Temperature profiles of spheres packed in regular arrays

Creator:: Cunningham, Mitchel Eugene
Abstract:: An analytical solution is developed for the temperature profile of a unit cell consisting of a sphere of one material centered in a cube of a second material. All material properties are considered constant and boundary conditions consist of specified temperatures on the top and bottom faces of the cube...
Resource Type:: Masters Thesis
Full Text:: , material. This situation may be illustrated by two examples from the field of nuclear engineering. First

Some theoretical and experimental aspects of design with brittle material

Creator:: Robinson, Ernest Y.
Abstract:: The Weibull theory, an attempt to account for the variability of measured strength in brittle materials, is described in some detail. An important and useful modification is derived, the normalized survival probability distribution, given by the equation [equation] where S is the probability that the specimen will survive the fraction...
Resource Type:: Masters Thesis

Stochastic simulation of sphere beds and the effect of packing density on the thermal conductivity of sphere pac nuclear fuels

Creator:: Henke, Robert K.
Abstract:: The establishment of any thermal model of reactor fuel requires a thorough understanding of the behavior of the thermal conductivity. This is especially true in the case of sphere pac fuels where the conductivity is a function of many variables beyond those normally affecting conventional fuels. One of these variables,...
Resource Type:: Masters Thesis
Full Text:: packing density on the thermal conductivity of sphere pac nuclear fuels AN ABSTRACT OF THE THESIS OF

A two-dimensional analysis of porosity effects on the thermal conductivity of ceramic nuclear fuels

Creator:: Reardon, Patrick Thomas
Resource Type:: Masters Thesis
Full Text:: Structure and Properties of U-C and (U-Pu)C Alloys," New Nuclear Materials Including Non-Metalic Fuels, vol

One and two dimensional space-energy flux synthesis with spatially discontinuous trial functions

Creator:: Olson, Willard Orvin
Abstract:: The development of nuclear reactors as an energy source requires a substantial investment in capital and effort. This development depends heavily on accurate calculational methods. Space-energy flux synthesis, also variously called the spectral synthesis method, modal method, and overlapping group method, is one possible method. In this method the energy...
Resource Type:: Dissertation
Full Text:: DOCTOR OF PHILOSOPHY (NaMe of'Student) (Degree) in Nuclear Engineering presented on (Major Department

Two-dimensional temperature model for target materials bombarded by ion beams

Creator:: Bostick, Kent C.
Abstract:: The ion implantation process is a very precise, controllable, and reproducible method used to enhance material properties of finished components such as ball bearings. Essentially, the target material is bombarded by accelerated ions to form a thin alloyed layer in the substrate. As the ions deposit their kinetic energy in...
Resource Type:: Masters Thesis
Full Text:: Disruption Induced Melting and Vaporization By Ion or Electron Beam", Journal of Nuclear Materials, 122

Accident analysis of traffic accidents involving radioactive materials (RAM)

Creator:: Humphries, Larry LaRon
Abstract:: The extensive and expanding use of radioactive materials (RAM) in the production of power, industry, the healing arts, and various branches of research has inevitably resulted in a sizable increase of hazardous material transportation in the state of Oregon. The location of the Hanford facility just north of the Oregon...
Resource Type:: Masters Thesis
Full Text:: material emitted to the atmosphere were also difficult to typify due to the diverse nature of materials

Temporal gamma-ray spectrometry to quantify relative fissile material content

Creator:: Williford, Russell S.
Abstract:: A new method for delayed gamma-ray spectrometry to quantify the relative content of fissile material is developed and demonstrated to support international efforts in bolstering non-destructive assay capabilities. Previous traditional delayed gamma-ray spectrometry techniques rely upon nuclear data that often carry very high uncertainty. The new method removes the requirement...
Resource Type:: Dissertation
Full Text:: accountability of nuclear material (DOE, 1999). Increasing the capability of the IAEA nuclear materials control

Detection of actinides via nuclear isomer de-excitation

Creator:: Francy, Christopher J.
Abstract:: The detection of illicit weapons-grade nuclear material is a significant technical challenge receiving a great deal of attention in the nuclear community. A proposed solution is to actively bombard the material under investigation with neutrons, populating nuclear isomers in any potential fissile material. These isomers decay quickly, releasing gamma rays...
Resource Type:: Masters Thesis
Full Text:: : __________________________________________________________ Todd S. Palmer The detection of illicit weapons-grade nuclear material is a significant

ScholarsArchive@OSU

Incorporating statistical uncertainty into nuclear material diversion pathway analysis using probabilistic risk assessment

Temperature profiles of spheres packed in regular arrays

Some theoretical and experimental aspects of design with brittle material

Stochastic simulation of sphere beds and the effect of packing density on the thermal conductivity of sphere pac nuclear fuels

A two-dimensional analysis of porosity effects on the thermal conductivity of ceramic nuclear fuels

One and two dimensional space-energy flux synthesis with spatially discontinuous trial functions

Two-dimensional temperature model for target materials bombarded by ion beams

Accident analysis of traffic accidents involving radioactive materials (RAM)

Temporal gamma-ray spectrometry to quantify relative fissile material content

Detection of actinides via nuclear isomer de-excitation

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