Index Catalog // ScholarsArchive@OSU

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
Full Text:: : Neutron Flux-Energy Spectral Characterization of a Deuterium-Tritium Neutron Generator at Oregon State

Skin depth dose response of an ionization chamber and a thermo-luminescent dosimeter system using low energy X-rays

Creator:: Fowler, Adam (Adam James)
Abstract:: The use of Ionization Chambers and Thermo-luminescent dosimeters (TLD's) in the medical field has established a need to determine if the skin depth dose response is comparable between the two detectors. This research will determine if the dose response from an Ionization chamber is comparable to a Thermo-luminescent dosimeter system...
Resource Type:: Masters Thesis
Full Text:: state of Oregon. The radiation safety officer (RSO) and the imaging department manager at each

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
Full Text:: : Development of a High-Energy Neutron Sniffer and Subsequence Dose Quantification for High-Energy Particle

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
Full Text:: application of the MHD energy conversion system to a 400MW lead cooled fast reactor. The analysis states that

Evaluating the presence of radium-226 in soil surrounding a coal-fired power plant using the multi-agency radiation survey and site investigation manual (MARSSIM)

Creator:: Herring, Thomas A. (Thomas Andrew)
Abstract:: Coal-fired power plants constitute a significant source of energy production for the United States, and are projected to do so for decades to come. Most of the scrutiny coal-fired power plants receive is in the form of environmental concerns regarding green house gas emissions of carbon dioxide, sulfur dioxide, and...
Resource Type:: Masters Thesis
Full Text:: Service (NRCS), an agency of the United States Department of Agriculture. Descriptions and attributes of

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:: the transport of high-energy protons through several models, varying three parameters (experimental

Establishment of concentration ratios for riparian and shrub steppe areas of the eastern Washington Columbia basin

Creator:: Napier, Jonathan Bamberger
Abstract:: Concentration ratios are used to determine the transfer of nuclides from soil to biota to fauna. Some nuclides have limited associated data though, this has not prevented predictions from being performed at sites without associated data. These ratios are site specific and are not fully applicable when applied to other...
Resource Type:: Masters Thesis
Full Text:: State Department of Fish and Wildlife as a solution to invasive species harming native species of the

Examination of uranium uptake by root vegetables and consequences for human consumption

Creator:: AlZahrani, Abdullah Bakheet
Abstract:: Uranium is the most common radionuclide that found in the nature. It is a radionuclide with a very low specific activity. There is limited data on plan uptake of uranium. This research was to determine the plant uptake of uranium, calculate the concentration ratio, and estimate the dose from eating...
Resource Type:: Masters Thesis
Full Text:: excited state, retaining some of the energy. Alpha- Beryllium Source Gamma rays can be used

How clean is coal : coal power plant ash pond regulations compared to nuclear reactor decommissioning standards

Creator:: Williams, Manuel P.
Abstract:: Coal power is the prominent source of energy in the United States (U.S.) and around the world. The byproducts of coal power contain many of the same radioactive nuclides that are found in the local environment just in higher concentrations. With so much of this ash being stockpiled, the amount...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________________________________________ Jack F. Higginbotham Coal power is the prominent source of energy in the United States (U.S

Use of GIS software to map contaminant distributions and determine integrated dose for purposes of assessing impact to biota

Creator:: Myers, Margaret C.
Abstract:: The objective of this research was to estimate the radiological impact on various non-human biotas by the Fukushima Daiichi Nuclear power plant radiation release resulting from Japan's tsunami in March 2011 consistent with the recent recommendations of the International Commission on Radiological Protection. Soil concentration data given by Japan's Ministry...
Resource Type:: Masters Thesis
Full Text:: submitted to Oregon State University in partial fulfillment of the requirements for the degree

ScholarsArchive@OSU

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

Skin depth dose response of an ionization chamber and a thermo-luminescent dosimeter system using low energy X-rays

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

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

Evaluating the presence of radium-226 in soil surrounding a coal-fired power plant using the multi-agency radiation survey and site investigation manual (MARSSIM)

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

Establishment of concentration ratios for riparian and shrub steppe areas of the eastern Washington Columbia basin

Examination of uranium uptake by root vegetables and consequences for human consumption

How clean is coal : coal power plant ash pond regulations compared to nuclear reactor decommissioning standards

Use of GIS software to map contaminant distributions and determine integrated dose for purposes of assessing impact to biota

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