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  • 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

  • Experiments into plasma physics

    Creator:
    Smith, Christopher S.
    Abstract:
    Our research was focused mainly on the field of plasma physics and the creation of plasmas in a laboratory environment. We first began our project with the goal to develop a tabletop Tokamak, a doughnut shaped device that magnetically confines plasmas at pressures greater than one atmosphere. After researching this...
    Resource Type:
    Honors College Thesis
    Full Text:
    : Dr. Henri Jansen, representing Physics Dr. Kenneth S. Krane, representing Physics Dr

  • Synthesis and testing of a novel soft donor organic extractant molecule for targeted soft metal extraction from aqueous phases

    Creator:
    Gullekson, Brian J.
    Abstract:
    Spent nuclear fuel (SNF) resultant from the generation of nuclear power is a chemically and radiologically diverse system which is advantageous to chemically process prior to geologic disposal. Hydrometallurgy is the primary technology for chemical processing for light water reactor spent fuels, where spent fuel is dissolved in an acid...
    Resource Type:
    Masters Thesis
    Full Text:
    of 235U Curve F is s io n Y ie ld ( P e rc e n t) Mass Number, A 3 Figure 2

  • Evaluation of partial discharge in inverter driven medium voltage propulsion coils

    Creator:
    Ramme, André
    Abstract:
    Advancements in power electronics to higher power levels and faster switching times allow new machine and systems designs, but also create higher stresses on electric machinery insulation. High performance, pulse-width modulated (PWM) inverters are now available for medium voltage drive systems, and are being considered by the U.S. Navy as...
    Resource Type:
    Dissertation
    Full Text:
    . Kenneth S. Krane. Appreciation is also extended to my peers of the energy systems group who made the time

  • An MCNP benchmark model of the large experimental ZPPR-19B sodium fast reactor

    Creator:
    Onufer, Mark
    Abstract:
    The International Handbook of Evaluated Reactor Physics Benchmark Experiments contains detailed descriptions of many different reactor facilities. A large portion of these experiments have not been fully modeled due to the unavailability of computational power at the time of the experiment’s execution. With the advent of renewed interest in Sodium...
    Resource Type:
    Masters Thesis

  • Diffusion Accelerated Implicit Monte Carlo via Nonlinear Elimination for Thermal Radiative Transfer

    Creator:
    Lam, Adam Q.
    Abstract:
    In this dissertation, we derive and implement a new transport-diffusion hybrid algorithm for solving thermal radiative transfer (TRT) problems. Using the method of nonlinear elimination (NLEM), the TRT system of equations can be written in terms of a transport equation with the absence of scattering and a diffusion equation. The...
    Resource Type:
    Dissertation
    Full Text:
    : Todd S. Palmer In this dissertation, we derive and implement a new transport-diffusion hybrid al

  • Steady-State Computational Fluid Dynamics Analysis of a Quarter-Core Liquid Metal-hydride Cooled Microreactor

    Creator:
    Stevens, Kaeley R.
    Abstract:
    This thesis assessed the passive, natural circulation, design for a Bi-Ca-CaH2 cooled microreactor based on initial figures of merit. The values for the figures of merit selected for this thesis were: the maximum temperature in the core should not be more than 150 K above the average core outlet temperature,...
    Resource Type:
    Masters Thesis
    Full Text:
    described by Mohamed S. El-Genk et al. [11]. One reactor is called the scalable liquid metal-cooled small

  • Development of a Radioxenon Detection System using Stilbene and Strontium Iodide

    Creator:
    Gadey, Harish R.
    Abstract:
    The Comprehensive Nuclear-Test-Ban Treaty (CTBT) prohibits the testing of nuclear weapons on the face of the earth. The detection of atmospheric radioxenon (131mXe, 133m/133Xe, and 135Xe) plays an important role in the identification of sub-surface clandestine nuclear weapon explosions. Since the radioxenon identified above decay via two radiation in coincidence,...
    Resource Type:
    Dissertation
    Full Text:
    . I would also like to thank my committee members Dr. Yang, Dr. Palmer, Dr. Krane, and Dr. Sinha

  • Generation of Multigroup Multiband Cross Sections with Monte Carlo Simulations

    Creator:
    Lam, Adam Q.
    Abstract:
    This is the investigation into The generation of high-fidelity multigroup multiband cross sections from Monte Carlo neutron transport simulations. Previous methods for generating multigroup multiband (MGMB) cross sections, and multigroup cross sections, assume an approximate shape for the scalar flux. This approximate flux shape is the product of an energy-dependent...
    Resource Type:
    Masters Thesis
    Full Text:
    Multiband Cross Sections with Monte Carlo Simulations. Abstract approved: Todd S. Palmer A novel method

  • Evaluation of ²³⁵U and ²³⁸U Fast Fission Product Yields from Godiva-IV Burst Irradiation via Gamma Detection

    Creator:
    Tamashiro, Aaron S.
    Abstract:
    During the past few decades, the U.S. Department of Energy (DOE) has made significant investments to improve nuclear data libraries, as the quality of this data impacts nearly all analyses of nuclear systems. Nuclear fission product yields are one component of these libraries, and are important for the analysis of...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Aaron S. Tamashiro for the degree