Search Constraints

Start Over
Filtering by: Committee Member Klein, Andrew C. Remove constraint Committee Member: Klein, Andrew C.

Search Results

  • Special Nuclear Material Analysis Using Temporal Gamma-Ray Spectroscopy and Machine Learning Methods

    Creator:
    Curtis, Jessica R.
    Abstract:
    Following thermal neutron induced fission, supervised machine learning and temporal gamma-ray spectroscopy methods were used to identify differences in the delayed gamma-ray spectra of Pu-239 and U-235. The temporal gamma-ray spectroscopy method takes advantage of the time-dependent decay of fission products. Employing Spearman's rank-order correlation coefficient and without prior knowledge...
    Resource Type:
    Masters Thesis
    Full Text:
    previous temporal gamma-ray spectrometry methods. c© Copyright by Jessica R. Curtis June 9, 2016 All

  • Analysis of the antineutrino rate during CANDU reactor startup

    Creator:
    Matthews, Christopher
    Abstract:
    Detection systems used to monitor reactor operations are of significant interest as tools for verification of operator declarations. Current reactor site safeguards are limited to visual inspections and intrusive monitoring systems. The recent development of antineutrino detectors may soon allow real-time monitoring from an unobtrusive location. Antineutrinos are produced through...
    Resource Type:
    Masters Thesis
    Full Text:
    ..................................................................................... 61 C MCDANCOFF input ........................................................................... 65

  • Accelerating the convergence of the k-eigenvalue problem using a coarse mesh finite differencing scheme in cylindrical geometry

    Creator:
    Hummel, Andrew J.
    Abstract:
    Reactor modeling is largely limited by the computational time required to perform accurate full core calculations. There are many different methods and techniques employed in different reactor simulation codes, but properly modeling all of the physics that takes place in the system requires extensive computational effort. The Coarse Mesh Finite...
    Resource Type:
    Masters Thesis
    Full Text:
    Andrew J. Hummel for the degree of Master of Science in Nuclear Engineering presented on December 17

  • Development of a Novel MEMS Thermal Sensor Array for Pebble Bed HTGRs

    Creator:
    Hertel, Matthew A.
    Abstract:
    A novel high temperature thermal instrument is proposed, which utilizes a dual-sensing platinum resistor encased in a mono-crystalline alpha-alumina (sapphire) substrate. The instrument is comprised of four platinum trace elements, oriented with 90° rotational symmetry atop a 1120 oriented crystal lattice substrate. All four of these sensors measure temperature directly...
    Resource Type:
    Dissertation
    Full Text:
    members of my doctoral committee, Dr. Brian G. Woods, Dr. Andrew C. Klein, Dr. Qiao Wu, Dr. Richard

  • High Order Finite Elements SN Transport in X-Y Geometry on Meshes with Curved Surfaces in the Thick Diffusion Limit

    Creator:
    Woods, Douglas N.
    Abstract:
    The high-order finite element S[subscript N] transport equations are solved on several test problems to investigate the behavior of the discretization method on meshes with curved edges in X-Y geometry. Simpler problems ensured the correct implementation of MFEM, the general fi nite element library employed. A convergence study using the...
    Resource Type:
    Masters Thesis
    Full Text:
    of this spatial discretization method. c©Copyright by Douglas N. Woods February 18, 2016 All

  • Application of Advanced Hybrid Transport Methods for Nonproliferation Test Problems

    Creator:
    Somasundaram, Elanchezhian
    Abstract:
    The implementation of advanced hybrid (Monte Carlo/Deterministic) transport methods for realistic test problems has been a challenge due to the overhead efforts associated with interfacing a solution generated by a deterministic solver with a Monte Carlo based radiation transport code. In this work, with the help of Transpire, Inc., a...
    Resource Type:
    Dissertation
    Full Text:
    career have been priceless. I would also like to thank professor Dr. Andrew C. Klein, professor Dr

  • Advancing the understanding of bulk metallic glasses as structural materials through exploration of mechanical properties

    Creator:
    Naleway, Steven E.
    Abstract:
    Bulk metallic glasses (BMGs) offer a great deal of potential through their near-theoretical strength, potentially high toughness and unique forming and molding traits. However, there are still a number of outstanding issues that bar their widespread use. This thesis describes the investigation of three research questions each designed to further...
    Resource Type:
    Masters Thesis
    Full Text:
    size upon the fracture properties of BMGs was explored. SE(B) and C(T) BMG test samples of

  • Elemental analysis of zircon samples from Pacific northwest beaches by INAA

    Creator:
    Azim, Bilqees
    Abstract:
    Fifteen sand samples from beaches along the Pacific North were analyzed for their elemental content by the method of instrumental neutron activation analysis (INAA). A separation technique was employed to separate the zircon (a heavy non-magnetic mineral with a specific gravity of 4.67) from the rest of the sample. This...
    Resource Type:
    Masters Thesis
    Full Text:
    . I am very thankful to my committee, Dr Roman A. Schmitt, Dr. Andrew C.Klein, and Dr. Jonathan D

  • Development of a personal computer-based reactivity meter for a research reactor

    Creator:
    Bakir, Alla J. M.
    Abstract:
    A personal computer with a Data Acquisition and Control Adapter interface has been used to monitor the power of the Oregon State University TRIGA Reactor, and from the time behavior of the reactor power the reactivity has been computed using the point kinetics equations and displayed on a digital read-out...
    Resource Type:
    Masters Thesis
    Full Text:
    thankful to my committee, Dr. Andrew C. Klein, professor Donald L. Amort, and Dr. Jonathan D. Istok. A

  • Comparison of HEU and LEU neutron spectra in irradiation facilities at the Oregon State TRIGA® reactor

    Creator:
    Schickler, Robert
    Abstract:
    In 2008, the Oregon State TRIGA® Reactor (OSTR) was converted from highly-enriched uranium (HEU) fuel lifetime improvement plan (FLIP) fuel to low-enriched uranium (LEU) fuel. This effort was driven and supported by the Department of Energy's (DoE's) Reduced Enrichment for Research and Test Reactors (RERTR) program. The basis behind the...
    Resource Type:
    Masters Thesis
    Full Text:
    characterization. I would like to thank my committee (Dr. Kenneth Krane, Dr. William Warnes, Dr. Andrew Klein