Index Catalog // ScholarsArchive@OSU

Hartree-Fock electronic structure calculations forfree atoms and immersed atoms in an electron gas

Creator:: Walsh, Kenneth Charles
Abstract:: Electronic structure calculations for free and immersed atoms are performed in the context of unrestricted Hartree-Fock Theory. Spherical symmetry is broken, lifting de-generacies in electronic conﬁgurations involving the magnetic quantum number m. Basis sets, produced from density functional theory, are then explored for completeness. Com-parison to spectroscopic data is done...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Kenneth Charles Walsh for the degree of

Near earth object collisional mitigation via intense neutron and photon sources : a study in asteroid interdiction and energy coupling

Creator:: Sanders, JC
Abstract:: The large population of 2r>100m near earth objects (NEOs) presents a certain hazard to life on earth. It has been proposed that a nuclear device may be used to alter the course of such objects, thereby averting a catastrophic collision with the earth. The asteroid interdiction problem includes a number...
Resource Type:: Honors College Thesis
Full Text:: equivalent yield in megatons (where 1 MT = 4.184E17 J), ρg/cc is the object’s density in grams per cc

Comparison of two commercial detector arrays for RapidArc quality assurance

Creator:: Asay, Matthew Jamin
Abstract:: Radiation therapy is used in approximately half of all cancer treatments. The rapid advances in radiation therapy have led to techniques that are much more complex and therefore must be more carefully assessed for safety and efficacy. Accurate quality assurance methods must be implemented to provide patient safety and confidence...
Resource Type:: Masters Thesis
Full Text:: : Camille J. Lodwick Radiation therapy is used in approximately half of all cancer treatments

Scaling study of the depressurized conduction cooldown event in the high temperature test facility using RELAP5-3D/ATHENA

Creator:: Aldridge, Robert J.
Abstract:: In 2008, the Department of Energy (DOE) and Nuclear Regulatory Commission (NCR) decided that the Next Generation Nuclear Plant (NGNP) would be the Very High Temperature Reactor (VHTR). In support of the licensing and validation effort of the VHTR, Oregon State University was tasked with designing, building, and operating a...
Resource Type:: Masters Thesis
Full Text:: Robert J. Aldridge for the degree of Master of Science in Nuclear Engineering presented on May 29, 2013

Molybdenum-99 production in the Oregon State TRIGA reactor : analysis of the reactor design using a new LEU target as fuel

Creator:: Hummel, Andrew J.
Abstract:: The most widely used and versatile medical radioisotope today is technetium-99m. Roughly 30 million people depend on this radioisotope for diagnostic procedures each year, and this demand is expected to grow. Although there are numerous ways of procuring this isotope, the most common and most practical, for reasons to be...
Resource Type:: Dissertation
Full Text:: -2010 Format AN ABSTRACT OF THE DISSERTATION OF Andrew J. Hummel for the

On Primary Vortex Shedding Regimes between Long Tandem Plates

Creator:: Howard, Trevor Kent
Abstract:: Vortex shedding is a phenomenon relevant to any industry dealing with fluid flow. The shed vortices often produce oscillatory forces, which have been suspect in the catastrophic failure of airplanes and bridges alike. To prevent further engineering failures a better understanding of the underlying physics is needed. It has been...
Resource Type:: Dissertation
Full Text:: X Parker & Welsh [42] 1983 X Flow Map X Zdravkovich [43] 1987 X X X X Williamson [9

Extending the applicability of implicit Monte Carlo Diffusion : frequency dependence and variance reduction using the difference formulation

Creator:: Cleveland, Mathew A.
Abstract:: The intent of this work is to extend Implicit Monte Carlo Diffusion (IMD)[Gen. 2001] to account for frequency dependence and to incorporate the difference formulation[Szo. 2005] as a source manipulation variance reduction technique. This work shows the derivation of the probabilities and the associated proofs which govern the frequency dependent...
Resource Type:: Masters Thesis
Full Text:: (J. Westerferd) Frey, and Mike Rising. Nathan and I have worked with each other throughout our

The MiniSpec : a low-cost, compact, FPGA-based gamma spectrometer for mobile applications

Creator:: Becker, Eric M.
Abstract:: There is a significant role in emergency response and personal radiation safety that can be played by a compact radiation detector that is capable of identifying radionuclides. Herein is described the design, construction, and characterization of a small, low-cost, low-power gamma ray spectrometer prototype intended to fill this role, conducted...
Resource Type:: Masters Thesis

RELAP5-3D modeling of ADS blowdown of MASLWR facility

Creator:: Bowser, Christopher Jordan
Abstract:: Oregon State University has hosted an International Atomic Energy Agency (IAEA) International Collaborative Standard Problem (ICSP) through testing conducted on the Multi-Application Small Light Water (MASLWR) facility. The MASLWR facility features a full-time natural circulation loop in the primary vessel and a unique pressure suppression device for accident scenarios. Automatic...
Resource Type:: Masters Thesis

An investigation into the feasibility of neutron activating holmium-loaded, polymeric microspheres in the thermal column of a TRIGA reactor using MCNP5 simulation models

Creator:: Barreda, Gerardo E.
Abstract:: In intra-arterial radioembolization, nano- and micro-scaled carriers are used in patients with liver tumors that cannot be removed by surgery to deliver various radioisotopes with the aim of improving the outcome of tumor radiotherapy, of minimizing dose to healthy tissue, and of improving the quality of the diagnosis and imaging....
Resource Type:: Masters Thesis
Full Text:: . Higginbotham, Dr. Kenneth Krane, and Dr. Walter Loveland

ScholarsArchive@OSU

Hartree-Fock electronic structure calculations forfree atoms and immersed atoms in an electron gas

Near earth object collisional mitigation via intense neutron and photon sources : a study in asteroid interdiction and energy coupling

Comparison of two commercial detector arrays for RapidArc quality assurance

Scaling study of the depressurized conduction cooldown event in the high temperature test facility using RELAP5-3D/ATHENA

Molybdenum-99 production in the Oregon State TRIGA reactor : analysis of the reactor design using a new LEU target as fuel

On Primary Vortex Shedding Regimes between Long Tandem Plates

Extending the applicability of implicit Monte Carlo Diffusion : frequency dependence and variance reduction using the difference formulation

The MiniSpec : a low-cost, compact, FPGA-based gamma spectrometer for mobile applications

RELAP5-3D modeling of ADS blowdown of MASLWR facility

An investigation into the feasibility of neutron activating holmium-loaded, polymeric microspheres in the thermal column of a TRIGA reactor using MCNP5 simulation models

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