Index Catalog // ScholarsArchive@OSU

Testing Continuity between Versions 5.3.9 and 6.3.1 of Plaque Simulator for Planning Eye Plaque Brachytherapy Cases

Creator:: Polsdofer, Elizabeth M.
Abstract:: The purpose of this study is to examine the challenges of accepting and commissioning a new treatment planning system for eye plaque brachytherapy. Currently Oregon Health and Science University (OHSU) utilizes v5.3.9 of the Plaque Simulator software to plan all of its eye plaque brachytherapy cases. However, v5.3.9 is no...
Resource Type:: Masters Thesis

Monte Carlo derived absorbed fractions in a voxelized model of a rainbow trout

Creator:: Hess, Catherine A.
Abstract:: The International Commission on Radiological Protection (ICRP) has modeled twelve reference animals and plants (RAPs) with simple geometric shapes to be used when estimating radiation dose to non-human biota (NHB). In recent years, there has been interest in creating more realistic models in order to better understand the radiation interactions...
Resource Type:: Masters Thesis

Single and multiple rates of nonequilibrium diffusive mass transfer at the laboratory, field, and regional scales in the Culebra Member of the Rustler Formation, New Mexico

Creator:: Fleming, Sean W.
Resource Type:: Masters Thesis

Radon-222 as an in situ partitioning tracer for quantifying nonaqueous phase liquid (NAPL) saturations in the subsurface

Creator:: Davis, Brian M.
Abstract:: This study investigated the use of radon-222 as an in situ partitioning tracer for quantifying nonaqueous phase liquid (NAPL) saturations in the subsurface. Laboratory physical aquifer models (PAMs), field experiments, and numerical simulations were used to investigate radon partitioning in static (no-flow) experiments and in single-well, 'push-pull' tests conducted in...
Resource Type:: Dissertation

An investigation of chitosan for sorption of radionuclides

Creator:: Holfeltz, Vanessa Elaine
Abstract:: Chitosan is a biopolymer resulting from the deacetylation of chitin, the second most abundant biopolymer in nature. Chitosan has been successfully used in systems to remove metal ions and other pollutants from wastewater. Chitosan has shown promise as a sorbent for radionuclides in some aqueous waste streams. The sorption of...
Resource Type:: Masters Thesis

Groundwater flow and radionuclide transport in fault zones in granitic rock

Creator:: Geier, Joel E.
Abstract:: Fault zones are potential paths for release of radioactive nuclides from radioactive-waste repositories in granitic rock. This research considers detailed maps of en echelon fault zones at two sites in southern Sweden, as a basis for analyses of how their internal geometry can influence groundwater flow and transport of radioactive...
Resource Type:: Dissertation

Medical radionuclides and their impurities in wastewater

Creator:: Hay, Tristan Ryan
Abstract:: NCRP report No.160 states that medical exposure increased to nearly half of the total radiation exposure of the U.S. population from all sources in 2006 (NCRP 2009). Part of this increase in exposure is due to the rise in nuclear medicine procedures. With this observed growth in medical radionuclide usage,...
Resource Type:: Dissertation

Predicting dose and cell survival distributions for brachytherapy sources

Creator:: Stringham, Michael J.
Abstract:: The focus of this thesis is to determine the biological impact of dose from brachytherapy sources commonly used in cancer treatment. To achieve this goal, the Monte Carlo code PENELOPE was used to simulate point sources of four different isotopes (¹⁰³Pd, ¹²⁵I, ¹³⁷Cs, and ⁹⁰Sr) in an infinite medium of...
Resource Type:: Masters Thesis

Comparison of eye plaque dosimetry using deterministic and Monte Carlo methods

Creator:: Bristol, Jonathan R.
Abstract:: Eye plaque brachytherapy is an established technique for the treatment of ocular melanoma that allows for the preservation of the affected eye as well as visual function. A common treatment planning system for eye plaque procedures, Plaque Simulator (PS), assists physicists in calculating the radiation dose to the tumor and...
Resource Type:: Masters Thesis
Full Text:: for four different radioisotope sources and many plaque models and sizes. It also allows for the

10Be exposure ages of erratic boulders in southern Norway and implications for the history of the Fennoscandian Ice Sheet

Creator:: Goehring, Brent M.
Abstract:: This thesis focuses on the application of the cosmogenic nuclide Beryllium-10 (10Be) in an effort to better constrain the thickness history of the Fennoscandian Ice Sheet (FIS) at the Last Glacial Maximum (LGM) and into the Holocene, as well as begin to answer the long-standing question regarding the age and...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Testing Continuity between Versions 5.3.9 and 6.3.1 of Plaque Simulator for Planning Eye Plaque Brachytherapy Cases

Monte Carlo derived absorbed fractions in a voxelized model of a rainbow trout

Single and multiple rates of nonequilibrium diffusive mass transfer at the laboratory, field, and regional scales in the Culebra Member of the Rustler Formation, New Mexico

Radon-222 as an in situ partitioning tracer for quantifying nonaqueous phase liquid (NAPL) saturations in the subsurface

An investigation of chitosan for sorption of radionuclides

Groundwater flow and radionuclide transport in fault zones in granitic rock

Medical radionuclides and their impurities in wastewater

Predicting dose and cell survival distributions for brachytherapy sources

Comparison of eye plaque dosimetry using deterministic and Monte Carlo methods

10Be exposure ages of erratic boulders in southern Norway and implications for the history of the Fennoscandian Ice Sheet

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