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:: bound atomic states to a neutral, uniform background electronic gas (jellium). c©Copyright by Kenneth

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:: Appendix C Mean Free Paths of Neutrons and Photons in Various Materials…………………………………………………... 46

Light Pollution and the Limiting Visual Magnitude in Corvallis, Oregon

Creator:: Grellmann, Carsten Christof
Abstract:: This study sought to ascertain the degree to which the night sky of Corvallis is affected by light pollution by determining the limiting visual magnitude. Defined as the brightness of the dimmest star that can be seen with the averted naked eye, the limiting visual magnitude establishes a quantitative standard...
Resource Type:: Honors College Thesis
Full Text:: Engineering project of Carsten C. Grellmann presented on May 22, 2009. APPROVED: Mentor

Simulated antineutrino signatures of nuclear reactors for nonproliferation applications

Creator:: Misner, Alex C.
Abstract:: Antineutrino detectors could provide a valuable addition to current safeguards regimes. Antineutrinos are an attractive emission to monitor due to their low interaction cross-section that prevents them from being shielded and the dependence of their spectrum on the power level and isotopic content of a reactor core. While there are...
Resource Type:: Dissertation
Full Text:: C. Misner for the degree of Doctor of Philosophy in Nuclear Engineering presented on April 25, 2008

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:: operates at a full power of 350 MWth. The primary loop inlet and outlet temperatures are 259 o C and

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

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

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:: by ±0.2%. 26 A temperature dependence of 0.57%/°C 9 or 0.54%/°C 26 was observed, which

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
Full Text:: ) the coupled crystal and SSPM assembly wrapped in Teflon tape, and c) the assembly inside the custom

Reactor physics model of the Advanced Test Reactor using TRIGA® fuel through application of Serpent 2

Creator:: Lyons, Jennifer
Abstract:: The Advanced Test Reactor (ATR), under the Reduced Enrichment for Research and Test Reactors (RERTR) Program and the Global Threat Reduction Initiative (GTRI), is conducting feasibility studies for the conversion of its fuel from a highly enriched uranium (HEU) composition to a low enriched uranium (LEU) composition. These studies have...
Resource Type:: Masters Thesis
Full Text:: ......................................................................................... 70! 11! APPENDIX C: VARIED BURN REGIONS ....................................................... 71

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

Light Pollution and the Limiting Visual Magnitude in Corvallis, Oregon

Simulated antineutrino signatures of nuclear reactors for nonproliferation applications

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

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

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

Comparison of two commercial detector arrays for RapidArc quality assurance

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

Reactor physics model of the Advanced Test Reactor using TRIGA® fuel through application of Serpent 2

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