Index Catalog // ScholarsArchive@OSU

Characterization of the onset of charged particle equilibrium for photon dose to skin

Creator:: Ryan, Michael C.
Abstract:: In the U.S., the Nuclear Regulatory Commission (NRC) is responsible for setting annual dose limits. For cases of hot particle contamination these limits are set at depths in skin of 7 mg/cm², 300 mg/cm², and 1000 mg/cm². However, at such shallow depths, the lack of charged particle equilibrium (CPE) precludes...
Resource Type:: Masters Thesis

Design and analysis of radiation shielding eyewear

Creator:: Spackman, David A.
Abstract:: The recent reductions to the international dose limit recommendations for the lens of the eye have renewed interest in radiation protection strategies in interventional fluoroscopy, where eye-lens radiation exposure occurs frequently. Radiationshielding eyewear can significantly reduce lens dose in these scenarios, but accurate protection factors are elusive because they depend...
Resource Type:: Masters Thesis

Pine Tree Dosimetry: Development of Geometric and Compositionally Specific Sectional Models for Organ Dose Assessment

Creator:: Condon, Caitlin A.
Abstract:: Ideally, dosimetric models for pine trees will accurately reflect the doses to its critical organs. However, existing models (e.g. that in ICRP 108) for the pine tree are over simplified or solely focused on estimating doses to one specific organ, and none of the existing models attempt dosimetry to the...
Resource Type:: Dissertation

Eye Lens Doses from Oblique Sources

Creator:: Trakowski, Ian M.
Abstract:: Since the International Commission on Radiation Protection (ICRP) recommended a revision to the eye lens dose limits in ICRP Publication 118 (Stewart, 2012) the radiation protection community has conducted many new studies related to eye dosimetry. The recommended reduction of eye lens dose limits may result in the reduction of...
Resource Type:: Masters Thesis

Structural Insights into Novel Sugar Phosphate Cyclases and Flavoenzymes

Creator:: Kean, Kelsey M.
Abstract:: The function of a protein is defined by its three-dimensional structure, and in understanding the three-dimensional structure of a protein, we gain an understanding of its function and mechanism. Protein structures, especially at high resolution, can provide detailed insights into many elements of enzyme function and catalysis – identifying residues...
Resource Type:: Dissertation
Full Text:: clear documentation which has made my life much easier). I also thank Viviana Perez and Shelley Su, my

Human Eye Dosimetry: Air Gap Analysis by Shield Placement and Photon Energy

Creator:: Herrera, Joshua P.
Abstract:: When the ICRP updated their recommended limits for eye dose, they ignited a renewed interest in eye dosimetry. Especially, how the updated eye dose estimates affect current regulations and what that would mean to a radiation worker. Radiation workers are commonly required to wear leaded eyeglasses to reduce their dose...
Resource Type:: Masters Thesis

Analysis of Carbon-14 Transport from a Contaminated Groundwater Source

Creator:: Napier, Jonathan Bamberger
Abstract:: Radioecology observes the movement of radioactive isotopes throughout the environment. For radioecology, locations of study are limited to areas accidentally contaminated from a number of sources. The Chalk River Laboratories of Atomic Energy of Canada Limited have stored low level waste since the mid 1940s. In certain instances, the wastes...
Resource Type:: Dissertation
Full Text:: . At Oregon State, my committee members, David Hamby, Krystina Tack, Lisa Madsen, and Shelley Su for

Comparison of dosimetric modeling of the International Commission on Radiological Protection trout reference animal

Creator:: Comolli, Michelle LeAnne
Abstract:: Radiation protection has historically been from a human protection approach, therefore many studies have neglected the potential dose contribution from the gastrointestinal tract (GIT) in animal studies. The International Commission on Radiological Protection (ICRP) utilized simplified geometric shapes with Dose Conversion Factors (DCF) based on homogenized models for the trout...
Resource Type:: Masters Thesis

Design, construction, and analysis of a skin contamination dosimeter

Creator:: Cazalas, Edward J.
Abstract:: International recommendations provided by the International Commission on Radiation Protection (ICRP), as well as national regulations, set by the U.S. Nuclear Regulatory Commission (NRC), state that the exposure of skin to highly concentrated radioactive sources should be monitored at specified depths in skin and kept below specific dose equivalence levels....
Resource Type:: Masters Thesis

Modeling of an Urban Radiocesium Pathway from Catchment to Wastewater Treatment Sludge

Creator:: Ng, George M. H.
Abstract:: The urban hydrology and hydraulics program, US EPA SWMM 5, has been coupled with a compartment model of a wastewater treatment plant (WWTP) in the system dynamics software, STELLA, to simulate the radiocesium pathway from urban catchment to the wastewater treatment sludge. Two literature case studies were re-examined. Firstly, a...
Resource Type:: Dissertation

ScholarsArchive@OSU

Characterization of the onset of charged particle equilibrium for photon dose to skin

Design and analysis of radiation shielding eyewear

Pine Tree Dosimetry: Development of Geometric and Compositionally Specific Sectional Models for Organ Dose Assessment

Eye Lens Doses from Oblique Sources

Structural Insights into Novel Sugar Phosphate Cyclases and Flavoenzymes

Human Eye Dosimetry: Air Gap Analysis by Shield Placement and Photon Energy

Analysis of Carbon-14 Transport from a Contaminated Groundwater Source

Comparison of dosimetric modeling of the International Commission on Radiological Protection trout reference animal

Design, construction, and analysis of a skin contamination dosimeter

Modeling of an Urban Radiocesium Pathway from Catchment to Wastewater Treatment Sludge

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