Index Catalog // ScholarsArchive@OSU

Use of CR-39 for nuclear criticality accident dosimetry and high neutron dose monitoring

Creator:: Tai, Lydia I.
Abstract:: CR-39 foils were irradiated as part of nuclear accident dosimetry experiments using the Godiva reactor at the Nevada National Security Site and the Caliban and Prospero reactors at the Valduc Centre for Nuclear Studies in France. The irradiated foils were chemically etched using the standard Lawrence Livermore National Laboratory process...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ____________________________________________________ David M. Hamby CR-39

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

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
Full Text:: : _____________________________________________________________________________________ David M. Hamby Abstract: When the ICRP updated their recommended limits for eye dose, they

A beta dosimeter and spectrometer utilizing plastic scintillators and a large-area avalanche photodiode

Creator:: Kriss, Aaron A.
Abstract:: The purpose of this research was to develop and test a radiation detector to perform beta dosimetry and spectroscopy. The detector utilizes plastic scintillator volumes to produce scintillation light in proportion to the amount of energy deposited in them, and a large-area avalanche photodiode to convert the light to electrical...
Resource Type:: Dissertation
Full Text:: David M. Hamby The purpose of this research was to develop and test a radiation detector to perform

Mapping dose rate of the Oregon State University neutron radiography facility

Creator:: Ropon, Kimberly
Abstract:: The Department of Nuclear Engineering at Oregon State University has recently introduced a neutron radiography facility (OSNRF). The facility is dependent on a neutron source established by the OSU TRIGA® Reactor (OSTR). It was unknown how accurately a computerized model of the OSTR in conjunction with the OSNRF could represent...
Resource Type:: Masters Thesis
Full Text:: little as 0.04 inch [Berger, 1965]. The cadmium ratio gives the ratio of thennal-to-fast neutrons in a

Beta-particle backscatter factors and energy-absorption scaling factors for use with dose-point kernels

Creator:: Mangini, Colby D.
Abstract:: 'Hot particle' skin dosimetry calculations are commonly performed using homogeneous dose-point kernels (DPK) in conjunction with scaling and backscatter models to account for non-homogeneous geometries. A new scaling model for determining the actual DPK for beta-particles transmitted by a high-Z source material has been developed. The model is based on...
Resource Type:: Dissertation
Full Text:: for Use with Dose-Point Kernels Abstract approved: David M. Hamby

Retrospective thermal neutron fluence determination using lithium-ion mobile telephone batteries

Creator:: Dorrell, Nick J.
Abstract:: Fortuitous dosimeters are radiosensitive objects carried by an individual who was exposed to radiation. These objects can be analyzed some time after exposure and the results can be used to aid in calculating radiation fields and doses received by individuals. Items that make good fortuitous dosimeters are those that are...
Resource Type:: Masters Thesis
Full Text:: approved: David M. Hamby Fortuitous dosimeters are radiosensitive objects carried by an

Locating and Quantifying Contamination Deposited in Radiation Puncture Wounds

Creator:: Wehmann, Nicholas K.
Abstract:: Internal dosimetry models show a representation of how radionuclides move through the body. This study takes a look at radiation wounds by modelling a puncture wound to the hand using Microshield software. An analysis of these models provides a triangulation method that could be used to investigate wound characteristics, as...
Resource Type:: Masters Thesis
Full Text:: approved: ______________________________________________________ David M. Hamby Internal

Preliminary investigation of X-ray imaging for dose extraction of BANG® polymer gel in intensity modulated radiation therapy

Creator:: Sath, Chhipo
Abstract:: This study investigated gel dosimetry with X-ray CT imaging as a possible means for extracting dose information from a 3D gel dosimeter. Currently Optical CT and MRI are the popular means of dose extraction, but X-ray CT imaging has the advantage of being more convenient and cost effective. The dosimetric...
Resource Type:: Masters Thesis
Full Text:: showed little dependence on the temperature during irradiation, but showed dependence on temperature

Dose-effects relationships in non-human biota : development of field sampling, dosimetric and analytic techniques through a case study of the aquatic snail Campeloma decisum at Chalk River Laboratories

Creator:: Ruedig, Elizabeth B.
Abstract:: In the last decade regulatory bodies have begun to implement standards to protect populations of non-human biota (NHB) from the consequences of radiation exposure. This is a departure from previous regulatory frameworks which were concerned only with protecting man. The implementation of these new standards has started an ongoing discussion...
Resource Type:: Dissertation
Full Text:: David Rowan, for the opportunity to perform field work at their site. It is unique in the world, and I

ScholarsArchive@OSU

Use of CR-39 for nuclear criticality accident dosimetry and high neutron dose monitoring

Skin depth dose distribution measurement and analysis using radiochromic dosimetry

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

A beta dosimeter and spectrometer utilizing plastic scintillators and a large-area avalanche photodiode

Mapping dose rate of the Oregon State University neutron radiography facility

Beta-particle backscatter factors and energy-absorption scaling factors for use with dose-point kernels

Retrospective thermal neutron fluence determination using lithium-ion mobile telephone batteries

Locating and Quantifying Contamination Deposited in Radiation Puncture Wounds

Preliminary investigation of X-ray imaging for dose extraction of BANG® polymer gel in intensity modulated radiation therapy

Dose-effects relationships in non-human biota : development of field sampling, dosimetric and analytic techniques through a case study of the aquatic snail Campeloma decisum at Chalk River Laboratories

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