Index Catalog // ScholarsArchive@OSU

Comparison of Attila SN Particle Transport Code with MCNP in the Analysis of Small Modular Reactor Shielding

Creator:: Rose, Charlotte
Abstract:: Of great importance in the design of a nuclear power plant is the evaluation of shielding from the ionizing radiation produced in the core of the nuclear reactor. This requires simulation software to predict the dose rates in the areas of interest. Comparing the simulation of the same modeled system...
Resource Type:: Masters Thesis

Investigation of Drag Coefficient and Virtual Mass Coefficient on Rising Ellipsoidal Bubbles

Creator:: Dueñas, Alexander M.
Abstract:: Accurately describing drag and virtual mass forces in two-phase flows is crucial for high fidelity modeling of nuclear thermal hydraulic safety systems. This study compares existing drag coefficient correlations commonly used in computational fluid dynamics (CFD) applications for air bubbles to experimental data collected for ellipsoidal air bubbles of varying...
Resource Type:: Masters Thesis

Feasibility Study on MHD Energy Conversion for Applications in Liquid Metal Cooled Nuclear Reactors

Creator:: Qiu, Hanrui
Abstract:: The application of two-phase magnetohydrodynamic(MHD) in liquid metal cooled nuclear reactors presents opportunities to simplify the power generation system by eliminating moving components like a turbine for enhanced safety. The proposed system in this thesis consists of two loops with immiscible working ﬂuids. The compressed gas expands in the two-phase...
Resource Type:: Masters Thesis

Dynamic Probabilistic Risk Assessment Using ADAPT/RELAP5-3D for Cybersecurity Threat Analysis

Creator:: Wiltbank, Nathan E.
Abstract:: There is a growing need for an expanded Probabilistic Risk Assessment (PRA) framework that is able to accommodate new uncertainties that are present in Generation 3+ reactor designs. Dynamic PRA (DPRA) can allow for a more realistic risk assessment by taking advantage of established nuclear simulation codes to drive Dynamic...
Resource Type:: Masters Thesis

Neutron Flux-Energy Spectral Characterization of a Deuterium-Tritium Neutron Generator at Oregon State University

Creator:: Eastman, Abigail L.
Abstract:: The neutron flux-energy spectral characterization of a Thermo Fisher MP320 deuterium-tritium neutron generator was performed for two shielding configurations, one with substantial moderator between the source and the sample and one without such moderator. The STAYSL PNNL spectral adjustment code was utilized in conjunction with MCNP modelled reference spectra and...
Resource Type:: Masters Thesis

Nano-Recrystallized UO₂ Microcantilever Bending After Ion Irradiation

Creator:: Cullison, Mack
Abstract:: Idaho National Laboratories recently conducted micromechanical testing of nano-recrystallized UO₂ as a part of an ongoing investigation of High Burnup Structure (HBS). The goals of the test were to determine the fracture stress, and the elastic modulus of subdivided grains within UO₂ using ion irradiation rather than neutron irradiation to...
Resource Type:: Masters Thesis

Effects of MCNP Model Resolution on Predicting Water Equivalent Thickness of Nanocomposite Materials in High-Energy Proton Fields

Creator:: Freilich, Justina A. M.
Abstract:: Manned missions beyond low-Earth orbit present tremendous, multifaceted radiological challenges. The deep space radiation environment contains high-energy protons and heavy ions, which are not sufficiently shielded by the aluminum alloys that have historically been used in spacecraft. To address these shielding concerns, polymer-based nanocomposites have been proposed. Radiation transport simulations...
Resource Type:: Masters Thesis
Full Text:: , and Dr. Leah Minc, for their time and input. Thank you to the Oregon State University School of

Dosimetry Model for Alpha Emitters in a Radioactive Skin Patch for Treatment of Early-Stage Nonmelanoma Skin Cancers

Creator:: Squillante, Joyce
Abstract:: Nonmelanoma skin cancer (NMSC) is the most common malignancy in Caucasian populations. One existing treatment modality for NMSCs is external radiotherapy delivered to the skin cancer tumor by a beta-emitter-containing radioactive skin patch. Alpha emitters, with their higher linear energy transfer than beta particles and shorter range in tissue, make...
Resource Type:: Masters Thesis

Development of a High-Energy Neutron Sniffer and Subsequence Dose Quantification for High-Energy Particle Accelerator Shielding Surveys

Creator:: Overbay, Lauren A.
Abstract:: The objective of this research is to design a portable neutron detector that is lightweight and responds to neutrons with energies of 20 MeV and greater. The instrument will be used as a ‘sniffer’ probe for identifying shielding weaknesses at high-energy particle accelerators and be paired with a plastic scintillator...
Resource Type:: Masters Thesis

Dosimetric Evaluation of Nasal Cavity Basal Cell Layer during Radiotracer Administration

Creator:: Flora, Rigel
Abstract:: New delivery methods for radiotracers are constantly being proposed. Two key properties of the delivery method must be analyzed: dose to patient and effectiveness of delivery. In this work, the localized skin dose for intranasal administration of 18F was determined utilizing MCNP code. An anatomically accurate nasal cavity was constructed...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Comparison of Attila SN Particle Transport Code with MCNP in the Analysis of Small Modular Reactor Shielding

Investigation of Drag Coefficient and Virtual Mass Coefficient on Rising Ellipsoidal Bubbles

Feasibility Study on MHD Energy Conversion for Applications in Liquid Metal Cooled Nuclear Reactors

Dynamic Probabilistic Risk Assessment Using ADAPT/RELAP5-3D for Cybersecurity Threat Analysis

Neutron Flux-Energy Spectral Characterization of a Deuterium-Tritium Neutron Generator at Oregon State University

Nano-Recrystallized UO₂ Microcantilever Bending After Ion Irradiation

Effects of MCNP Model Resolution on Predicting Water Equivalent Thickness of Nanocomposite Materials in High-Energy Proton Fields

Dosimetry Model for Alpha Emitters in a Radioactive Skin Patch for Treatment of Early-Stage Nonmelanoma Skin Cancers

Development of a High-Energy Neutron Sniffer and Subsequence Dose Quantification for High-Energy Particle Accelerator Shielding Surveys

Dosimetric Evaluation of Nasal Cavity Basal Cell Layer during Radiotracer Administration

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