Index Catalog // ScholarsArchive@OSU

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

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:: : ________________________________________________________________________ Jamie J. Kruzic Bulk metallic glasses (BMGs) offer a great deal of potential through their

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 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:: for a research reactor AN ABSTRACT OF THE THESIS OF Alla J. M. Bakir for the degree of Master of

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

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

Fatal and non-fatal work-related injuries onboard freezer-trawlers and freezer-longliners in Alaska : an in-depth evaluation

Creator:: Lucas, Devin L.
Abstract:: Vessel disasters (e.g., vessels capsizing, sinking, grounding, burning) are the leading contributor to occupational fatalities in the U.S. commercial fishing industry. Vessel disasters are a vital area to target prevention efforts, yet it has been suggested that results produced in scientific studies are not efficiently exchanged between researchers, regulatory bodies...
Resource Type:: Dissertation
Full Text:: perspectives and always reminding me that there are other paradigms to consider. I thank Dr. Andrew Klein for

The iterative thermal emission Monte Carlo method for thermal radiative transfer

Creator:: Long, Alex R.
Abstract:: For over 30 years, the Implicit Monte Carlo (IMC) method has been used to solve challenging problems in thermal radiative transfer. These problems are typically optically thick and di ffusive, as a consequence of the high degree of "pseudo-scattering" introduced to model the absorption and reemission of photons from a...
Resource Type:: Masters Thesis
Full Text:: ) where Ti,N = ( i−1∑ j=1 T n+1j ) + (N − i+ 1)T ni . (42) 28 The Ti,N term is the current

Applying uncertainty and sensitivity on thermal hydraulic subchannel analysis for the multi-application small light water reactor

Creator:: Brigantic, Adam
Abstract:: Small modular reactors (SMRs) are a recent advancement in commercial nuclear reactor design with growing interest worldwide. New SMR concepts, such as the Multi-Application Small Light Water Reactor (MASLWR), must undergo a licensing processes established by the U.S. Nuclear Regulatory Commission (NRC) prior to commercial operation. Given the lack of...
Resource Type:: Masters Thesis

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:: and scalar fluxes in terms of basis functions, ψk (r,Ω) = Jk∑ j=1 bk,j (r)ψk,j (Ω) (12) φk (r

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

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

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:: separation at specific gravity = 3.0 1 i Heavy >3.0 Light <3.0 I J Magnetic separation Magnetic Non

Radiative Acceleration and Emission from Relativistic Outflows

Creator:: Chhotray, Atul
Abstract:: Outflowing streams of matter or jets are a common phenomenon in the observeduniverse. The most extreme and powerful jets are relativistic, i.e., they travel at speedscomparable to the of speed light. Gamma Ray-Bursts (GRBs) and Active Galactic Nuclei(AGNs) are two sources of these relativistic jets. In this work I will...
Resource Type:: Dissertation

Discrete Ordinates Radiation Transport using High-Order Finite Element Spatial Discretizations on Meshes with Curved Surfaces

Creator:: Woods, Douglas N.
Abstract:: We spatially discretize the Sn transport equation using the high-order (HO) discontinuous finite element method (DFEM) on HO meshes. Previous work provided a proof-of-concept for this spatial discretization method in X-Y geometry. Included in the present work, we derive a spatial discretization for the Sn transport equation in both X-Y...
Resource Type:: Dissertation

Flow Dynamics and Condensation of Film Flows in Small Modular Reactors

Creator:: Lee, Dongyoung
Abstract:: There is renewed interest in the reliability and safety of nuclear power plants following the Fukushima Daiichi nuclear accident followed by 8.9 magnitude earthquake and Tsunami with the height of 15 m on March 11, 2011. Small Modular Reactors (SMRs) have been developed to improve safety systems by utilizing passive...
Resource Type:: Dissertation
Full Text:: appreciation to Dr. Andrew Klein, Dr. Brian Woods, Dr. Deborah Pence, Dr. Kenneth Krane and Dr. Vinod

Production of industrial and medical radioisotopes in accelerator production of tritium (APT)

Creator:: Tiyapun, Kanokrat
Resource Type:: Dissertation
Full Text:: committees: Dr. Andrew C. Klein, Dr. Todd S. Palmer, Dr. David Hamby Dr. Shoichi Kimura and Dr. Fred L

Feasibility study on the medical isotopes production with solution target using OSTR: ⁹⁹Mo and related isotopes

Creator:: Baik, Seung-Hyuk
Resource Type:: Dissertation
Full Text:: . Klein, Dr. Jose N. Reyes, Jr., Dr. Fred L. Ramsey and Dr. Lewis Semprini. I would appreciate the

ScholarsArchive@OSU

Analysis of the antineutrino rate during CANDU reactor startup

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

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

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

Application of Advanced Hybrid Transport Methods for Nonproliferation Test Problems

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

Fatal and non-fatal work-related injuries onboard freezer-trawlers and freezer-longliners in Alaska : an in-depth evaluation

The iterative thermal emission Monte Carlo method for thermal radiative transfer

Applying uncertainty and sensitivity on thermal hydraulic subchannel analysis for the multi-application small light water reactor

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

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

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

Elemental analysis of zircon samples from Pacific northwest beaches by INAA

Radiative Acceleration and Emission from Relativistic Outflows

Discrete Ordinates Radiation Transport using High-Order Finite Element Spatial Discretizations on Meshes with Curved Surfaces

Flow Dynamics and Condensation of Film Flows in Small Modular Reactors

Production of industrial and medical radioisotopes in accelerator production of tritium (APT)

Feasibility study on the medical isotopes production with solution target using OSTR: ⁹⁹Mo and related isotopes

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