Index Catalog // ScholarsArchive@OSU

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:: using Low Energy X-rays. Abstract approved: David M. Hamby The use of Ionization

Skin depth dose distribution measurement and analysis using radiochromic dosimetry

Creator:: Thuo, Kellen K.
Abstract:: Compliance with 10CFR 20.101 requires that exposure to the skin be assessed at a depth of 0.007 cm over 10 cm² area. This depth generally corresponds to the interface between the epidermal and dermal layers of the skin. The Nuclear Regulatory Commission states the criteria for evaluating skin dose from...
Resource Type:: Masters Thesis
Full Text:: Radiochromic Dosimetry Abstract approved: David M Hamby

Blood-based gene expression as a biodosimetry model for neuroblastoma patients treated with ¹³¹I-mIBG

Creator:: Edmondson, David A.
Abstract:: Internal dosimetry is challenging and relies on estimates using MIRD or ICRP biokinetic models. To address this, we looked at gene expression analysis in whole blood from radiotherapy patients. Patients with relapsed or refractory neuroblastoma who received ¹³¹I-mIBG at UCSF were used to correlate internal ionizing radiation (IR) dose with...
Resource Type:: Masters Thesis
Full Text:: David A. Edmondson for the degree of Master of Science in Radiation Health Physics presented on June 26

An allometric examination of the relationship between radiosensitivity and mass

Creator:: Bytwerk, David Paul
Abstract:: The results of a review of six decades of existing literature for 50% lethal dose data across a range of phyla are presented. The collected 50% lethal dose data is limited to adult organisms subjected to acute doses of gamma radiation. The data collected is examined to determine whether useful...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF David Paul Bytwerk for the degree of Master of Science in

Dose to the female breast from nuclear medicine and diagnostic radiology

Creator:: Patel, Aarti
Abstract:: There has been increased concern about radiation dose to the female breasts, with approximately 200,000 new breast cancers being diagnosed each year in the United States. The unprecedented increase in the use of radiologic exams on younger women has also raised some additional concerns about how procedures are performed. The...
Resource Type:: Masters Thesis
Full Text:: IN SPECT………………………………………………………………………….63 D. BREAST DOSE FROM POINT SOURCE ATTENUATION CORRECTION

Creation and Application of Voxelized Dosimetric Models : An Evaluation of Dose Conversion Factor in Apis Mellifera

Creator:: Gomez Fernandez, Mario Enrique
Abstract:: Over the past decade the International Commission on Radiological Protection has developed a comprehensive approach to environmental protection that includes the use of Reference Animals and Plants (RAPs) to assess radiological impacts on the environment. For the purposes of calculating radiation dose, the RAPs are approximated as simple shapes that...
Resource Type:: Masters Thesis
Full Text:: -4 Cesium-137 DCFs ICRU-4 Element Human Tissue [μGy-kg-d-1-Bq-1] .... 46 Table 4-5 Cesium-137 DCFs

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:: Figure 26. Pulse waveforms from a square input pulse a) at TP1, b) at TP2, c) at TP3, and d) after

Dissolution of uranium dioxide microspheres in carbonate and hydrogen peroxide solutions

Creator:: Adams, Timothy G.
Abstract:: Uranium dioxide has been used in industry both as a fuel for power reactors and as a target for the production of radioisotopes. One of the most important radioisotopes produced using these targets is molybdenum-99 (Mo-99, 65.94hr half-life), which is the parent isotope to technetium-99m (Tc-99m, 6.01hr half-life), a radioisotope...
Resource Type:: Masters Thesis

Post-accident radiocesium uptake in eastern Oregon wheat crops : A preliminary estimate using a modified "PATHWAY" model

Creator:: Palotay, Joshua A.
Abstract:: An experimental environmental uptake model was developed for the purpose of estimating the final harvest concentration of contaminant following an acute accidental release of radiocesium onto an eastern Oregon winter wheat crop. The system was developed using the PATHWAY environmental uptake model as presented by Whicker and Kirchner (1987) for...
Resource Type:: Masters Thesis
Full Text:: of health physics. I would also like to thank Dr. David Hamby and the rest of the faculty in the

Leukemia incidence and benzene air pollution in Portland Oregon

Creator:: Voss, Robert W.
Abstract:: Benzene is a widespread urban pollutant and monitoring results show concentrations are particularly high in Portland, Oregon. Nationally, benzene air pollution is the largest contributor to total cancer risk from air pollutants. We used data from several data sets including: modeled benzene distribution at the census block group level from...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

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

Skin depth dose distribution measurement and analysis using radiochromic dosimetry

Blood-based gene expression as a biodosimetry model for neuroblastoma patients treated with ¹³¹I-mIBG

An allometric examination of the relationship between radiosensitivity and mass

Dose to the female breast from nuclear medicine and diagnostic radiology

Creation and Application of Voxelized Dosimetric Models : An Evaluation of Dose Conversion Factor in Apis Mellifera

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

Dissolution of uranium dioxide microspheres in carbonate and hydrogen peroxide solutions

Post-accident radiocesium uptake in eastern Oregon wheat crops : A preliminary estimate using a modified "PATHWAY" model

Leukemia incidence and benzene air pollution in Portland Oregon

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search