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Filtering by: Creator Macdonald, Ken C. Remove constraint Creator: Macdonald, Ken C. Committee Member Krane, Ken Remove constraint Committee Member: Krane, Ken

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  • Patient radiation exposure variability and minimization in mobile, C-arm fluoroscopy

    Creator:
    Van Wieren, Robert T.
    Abstract:
    BACKGROUND: The frequency of C-arm fluoroscopy procedures is increasing and it has become prudent to increase the awareness of patient radiation exposure to minimize patient risk. There is a strong potential for variability in patient exposure levels and a need for minimizing unnecessary exposure. The variability in C-arm fluoroscopy can...
    Resource Type:
    Masters Thesis
    Full Text:
    and Minimization in Mobile, C-arm Fluoroscopy Abstract approved: Camille J

  • Preliminary framework for the run-ahead predictive simulation software (RAPSS)

    Creator:
    Makinson, Kevin A.
    Abstract:
    The Run-Ahead Predictive Simulation Software (RAPSS) is an architecture designed for faster-than-real-time decision support for operators of complex networks. To enable further development of the RAPSS methodology, the necessary proof of principle is illustrated in two applications: decision support for shift technical advisors in nuclear power plant control rooms (RAPSS-STA),...
    Resource Type:
    Dissertation
    Full Text:
    approved: ________________________________________________________________________ Andrew C. Klein

  • Fission Gas Bubble Behavior in Uranium Carbide

    Creator:
    Matthews, Christopher
    Abstract:
    The need for cheap reliable energy, while simultaneously avoiding uranium supply constraints makes uranium carbide (UC) fueled Gas Fast Reactors offer an attractive nuclear reactor design. In order to qualify the fuel, an enhanced understanding of the behavior of uranium carbide during operation is paramount. Due to a reduced re-solution...
    Resource Type:
    Dissertation
    Full Text:
    : Fission Gas Bubble Behavior in Uranium Carbide Abstract approved: Andrew C. Klein The need for cheap

  • A comparison of compact ionization chamber performance and relative readings

    Creator:
    Gerber, Ryan L.
    Abstract:
    The purpose of this study is to investigate the relative performance of compact ionization chambers as it changes based on the speed of detector motion and collection volume. To quantify changes, multiple scans were made with each of a selection of compact chambers and repeated varying detector speed. Each scan...
    Resource Type:
    Masters Thesis

  • Predicting antineutrino source terms from a high temperature gas reactor

    Creator:
    Shaughnessy, Andra L.
    Abstract:
    Since the 1990s, researchers around the world have been creating antineutrino detectors for monitoring power reactors. These detectors have been deployed at light water reactors and are able to determine power levels and burn up throughout a fuel cycle. This technology could allow the IAEA to monitor LWRs remotely and...
    Resource Type:
    Masters Thesis
    Full Text:
    enrichment also lead to a detectable change in the antineutrino source term. c©Copyright by Andra L

  • Prototyping a triple-layer phoswich detection system

    Creator:
    Duncan, Christopher L.
    Abstract:
    Multi-layer optically coupled scintillation based radiation detectors, known as phoswich detectors, have rapidly evolved in recent years. During the same time, digital signal processing has improved radiation discrimination accuracy and enhanced reliability, while reducing complexity and size of traditional analog signal processing methods. A new generation of high-speed radiation detectors...
    Resource Type:
    Masters Thesis
    Full Text:
    corresponding differential path length and is solved for by, 8 c r dE dE dES dx dx dx

  • Investigation of a hybrid quasi-diffusion/Monte Carlo method for solving multigroup criticality problems in slab geometry

    Creator:
    Robinson, Bethany R.
    Abstract:
    A hybrid Quasi-diffusion/Monte Carlo Method for solving multigroup criticality problems in slab geometry was investigated. Analog Monte Carlo was used to calculate functionals (Eddington Factors) that were then used in solution of the quasi-diffusion equations. The hybrid method was shown to accurately and precisely predict the k-eigenvalue and fission source...
    Resource Type:
    Masters Thesis
    Full Text:
    method was also shown to be computationally more efficient than analog Monte Carlo. c©Copyright by

  • An allometric examination of the relationship between radiosensitivity and mass

    Creator:
    Bytwerk, David Paul
    Abstract:
    The results of a review of six decades of existing literature for 50% lethal dose data across a range of phyla are presented. The collected 50% lethal dose data is limited to adult organisms subjected to acute doses of gamma radiation. The data collected is examined to determine whether useful...
    Resource Type:
    Masters Thesis
    Full Text:
    originally pioneered in 1934 by C. I. Bliss (Finney, 1947). Probit analysis, short for ‘probability unit

  • A Compact Radioxenon Detection System Using CZT, an Array of SiPMs, and a Plastic Scintillator

    Creator:
    Czyz, Steven A.
    Abstract:
    Several radioxenon isotopes (¹³¹ᵐXe, ¹³³Xe, ¹³³ᵐXe, ¹³⁵Xe) are characteristic byproducts of nuclear explosions, and due to their chemically nonreactive nature can easily escape from tests occurring underground and enter the atmosphere. It has been shown that by utilizing beta-gamma coincidence techniques, the Comprehensive Nuclear Test Ban Treaty Organization (CTBTO) can...
    Resource Type:
    Masters Thesis

  • How clean is coal : coal power plant ash pond regulations compared to nuclear reactor decommissioning standards

    Creator:
    Williams, Manuel P.
    Abstract:
    Coal power is the prominent source of energy in the United States (U.S.) and around the world. The byproducts of coal power contain many of the same radioactive nuclides that are found in the local environment just in higher concentrations. With so much of this ash being stockpiled, the amount...
    Resource Type:
    Masters Thesis