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Filtering by: Creator Barnes, Will C. (Will Croft) Remove constraint Creator: Barnes, Will C. (Will Croft) Degree Field Nuclear Engineering Remove constraint Degree Field: Nuclear Engineering

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  • Modeling transient thermalhydraulic behavior of a thermionic fuel element for nuclear space reactors

    Creator:
    Al-Kheliewi, Abdullah S.
    Abstract:
    A transient code (TFETC) for calculating the temperature distribution throughout the radial and axial positions of a thermionic fuel element (TFE) has been successfully developed. It accommodates the variations of temperatures, thermal power, electrical power, voltage, and current density throughout the TFE as a function of time as well as...
    Resource Type:
    Dissertation
    Full Text:
    Abstract Approved: drew C. Klein A transient code (TFETC) for calculating the temperature

  • Monte Carlo burnup analysis code development and application to an incore thermionic space nuclear power system

    Creator:
    Abdul-hamid, Shahab A.
    Abstract:
    Lattice bum-up calculations in thermal reactors are complicated by the necessity for use of transport theory to represent fuel rods, control rods, and burnable absorbers, by many time-dependent variables which must be considered in the analysis, and by geometric complexity which introduces time-dependent, spatial-spectral variations. Representation of lattice structure in...
    Resource Type:
    Masters Thesis
    Full Text:
    Nuclear Power System. Abstract Approved: Andrew C. Klein Lattice bum-up calculations in thermal reactors

  • Heat conduction in eccentric annuli

    Creator:
    Ting, Yine-ping
    Abstract:
    Muitiregion annular geometry is a basic feature of energy removal systems ranging from advanced heat exchangers to fission reactor fuel rods. For the symmetric cases, the heat conduction through annular regions is well defined. However, for a shift of an annular region, analysis of the system must be made in...
    Resource Type:
    Dissertation
    Full Text:
    thank my committee members Dr. L. R. Davis, Dr. J. C. Ringle, Dr. B. I. Spinrad, and Dr. J. T. Yoke for

  • Real Time Temporal Spectroscopy for Characterizing Special Nuclear Material

    Creator:
    Mannino, Mitch
    Abstract:
    Characterizing special nuclear material (SNM) is critical for nuclear security and non-proliferation. Temporal spectroscopy is a novel and efficient method for characterizing relative material content of special nuclear material. Fission products produced by SNM after being irradiated by a thermal neutron beam can have different half-lives, but can contribute to...
    Resource Type:
    Masters Thesis
    Full Text:
    Science and Engineering Dean of the Graduate School I understand that my thesis will

  • Quantification of Reactor Kinetics Parameters during Reactor Transients using Cherenkov Light and Auxiliary Application to Nuclear Safeguards

    Creator:
    Holschuh, Thomas V.
    Abstract:
    The International Atomic Energy Agency (IAEA) is the leading organization for monitoring nuclear facilities worldwide, and the Agency’s methods are constantly developing and improving in an effort to more effectively safeguard nuclear material. As such, the IAEA addresses near and long term risks in order to advance the capabilities of...
    Resource Type:
    Dissertation
    Full Text:
    Dean of the Graduate School I understand that my dissertation will become part of the

  • Reduced Order Modeling of Radiation Diffusion Kinetics via Proper Generalized Decomposition

    Creator:
    Alberti, Anthony L.
    Abstract:
    In this dissertation, we attempt to overcome the "curse of dimensionality" inherent to radiation diffusion kinetics problems by employing a novel reduced order modeling technique known as proper generalized decomposition (PGD). After verifying a proposed PGD algorithm and associated solvers through various tests, we explore its performance for computing reduced-order...
    Resource Type:
    Dissertation
    Full Text:
    Engineering Dean of the Graduate School I understand that my dissertation will become part of the permanent

  • An Active Interrogation Technique Based on Photofission for Non-destructive Assay of Used Nuclear Fuel

    Creator:
    Wen, Xianfei
    Abstract:
    High-energy delayed γ-rays from photofission were demonstrated to be signatures for detection and identification of special nuclear materials. Such γ-rays were measured in between linac pulses using independent data acquisition systems. A list-mode system was developed to measure low-energy delayed γ-rays after irradiation. Photofission product yields of ²³⁸U and ²³⁹Pu...
    Resource Type:
    Dissertation
    Full Text:
    Dean of the Graduate School I understand that my dissertation will become part of

  • Predicting mechanical instability of a cylindrical plate under axial flow conditions

    Creator:
    Marcum, Wade R.
    Abstract:
    Five U.S. high performance research reactors (HPRRs) are currently part of an international nonproliferation program with the objective of ultimately converting their highly enriched uranium (HEU) fuel to a new high density, low enriched uranium (LEU) fuel while still maintaining their reactor kinetic and thermal hydraulic performance. A uranium-molybdenum (U-Mo)...
    Resource Type:
    Dissertation
    Full Text:
    will become part of the permanent collection of Oregon State University libraries. My signature below