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Filtering by: Committee Member Krane, Kennith S. Remove constraint Committee Member: Krane, Kennith S. Academic Affiliation Nuclear Science and Engineering Remove constraint Academic Affiliation: Nuclear Science and Engineering

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  • 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

  • Designing a Spent Fuel Imaging System Using Active Radiography and Passive Tomography Techniques

    Creator:
    Economy, Nikolas
    Abstract:
    Instead of expensive and destructive chemical analysis, nondestructive assay (NDA) through radiography and tomography can be a faster, easier, and more appropriate method of analyzing spent nuclear fuel (SNF). As a preliminary study for the future design of a submersible SNF imaging system, this thesis demonstrates the ability of NDA...
    Resource Type:
    Masters Thesis
    Full Text:
    . David Hamby, and Dr. Kenneth Krane for their valuable time and input throughout the process of my

  • Vibration Analysis of Advanced Test Reactor Miniplate Hydraulic Test in the OSU HMFTF

    Creator:
    Latimer, Griffen D.
    Abstract:
    Current research on the topic of advanced reactor fuel types include the use of ultrahigh density Uranium-Molybdenum fuels, towards their use in high-performance research reactors. These reactors operate with high power densities, and the increased cooling requirements therefore place high relevance on the fluid-structure interaction with these fuel elements; therefore...
    Resource Type:
    Masters Thesis
    Full Text:
    n = 3 m = 1 m = 2 m = 3 16     1 1f n H s n IR M n h I

  • A Direction-Sensitive Radiation Detector for Low-Altitude, UAV-based Radiological Source Search

    Creator:
    Becker, Eric M. (Eric Matthew)
    Abstract:
    Many devices and methods for radiological searches are currently being developed, including scanning using simple detectors, mapping using large-volume detectors, and Compton imaging using 3-D position sensitive detectors. However, these devices are typically expensive and the methods used require long periods of time to generate a direction or location. The...
    Resource Type:
    Dissertation
    Full Text:
    angle, θs, and the reference angle of panel 15, φ1 . . . . . . . . . . . . . . 79 3.33 Illustration

  • Measurement of 239Pu, 237Np, and 238U Fission Product γ Rays

    Creator:
    Tamashiro, Aaron S.
    Abstract:
    Fission product yields (FPYs) are used for a wide range of applications including nuclear fission theory, nuclear reactor design, reactor antineutrino anomaly, stellar nucleosynthesis, and nuclear forensics. These applications rely on FPYs that were last evaluated in 1993, which included measurements from all over the world up until 1993. In...
    Resource Type:
    Dissertation
    Full Text:
    . Kenneth S. Krane, Dr. Steven R. Reese, Dr. Todd S. Palmer, and Dr. Walter D. Loveland. Thank you to Dr

  • Integrated Spatial and Temporal Stochastic Model in Radiation Biology : Design, Implementation, and Application

    Creator:
    Liu, Ruirui
    Abstract:
    Mathematical modeling plays a pivotal role in understanding the mechanism of radiation-induced cellular effects, and also in quantifying the radiation risk to the cell. However, there are still compelling challenges facing the conventional modeling in radiobiology, such as lacking a generalized theory structure of quantifying target effect and non-target effect...
    Resource Type:
    Dissertation
    Full Text:
    . David Hamby, Dr. Todd Palmer, Dr. Susan Carozza, and Dr. Kenneth Krane. They offered guidance and help