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Filtering by: Advisor Nelson, David M. Remove constraint Advisor: Nelson, David M. Degree Field Radiation Health Physics Remove constraint Degree Field: Radiation Health Physics

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  • Dosimetric Evaluation of Nasal Cavity Basal Cell Layer during Radiotracer Administration

    Creator:
    Flora, Rigel
    Abstract:
    New delivery methods for radiotracers are constantly being proposed. Two key properties of the delivery method must be analyzed: dose to patient and effectiveness of delivery. In this work, the localized skin dose for intranasal administration of 18F was determined utilizing MCNP code. An anatomically accurate nasal cavity was constructed...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ______________________________________________________ David M. Hamby

  • Development of a Fundamental Depth-Dependent Neutron Dosimetry Model

    Creator:
    Anspach, Logan J.
    Abstract:
    Current neutron dosimetry methods rely on the assumption that charged particle equilibrium (CPE) is established within the tissue medium. This maintains that the kinetic energy transferred to the medium (KERMA) is equivalent to absorbed dose. However, this assumption is only valid for large volumes such as the whole body. For...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ______________________________________________________ David M. Hamby Abstract

  • A Deterministic Photon and Electron Dosimetry Model for the Lens of the Eye

    Creator:
    Boozer, David L.
    Abstract:
    The lens dose equivalent (LDE) is a regulatory limit set to protect radiation workers. Current methods for estimating the LDE are specific to beam sources in a vacuum and require interpolating data from tables. A new set of deterministic equations for photon and electron point sources has been developed. These...
    Resource Type:
    Dissertation
    Full Text:
    approved: _____________________________________________________ David M. Hamby The lens dose

  • 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
    Full Text:
    : ______________________________________________________________ David M. Hamby Abstract: Since the International Commission on Radiation Protection (ICRP

  • 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

  • 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

  • Low-Dose Ionizing Radiation Solid Cancer Risk in Adults : Radiation Hormesis Study Design

    Creator:
    Alhussan, Abdulaziz S.
    Abstract:
    Cancer risk at low-dose ionizing radiation has been the subject of great scientific controversy in the past century. The clear majority of national and international radiation protection regulators adopt the linear no-threshold (LNT) model based on the atomic-bomb survivors Life Span Study (LSS) for solid cancer risk assessment. The LNT...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ David M. Hamby Cancer risk at low-dose ionizing radiation has been the

  • Redefining Nuclear : Exploring Stigma, Climate Change, and the Adoption of Nuclear Power in Southeast Asia

    Creator:
    Chan, Allen M.
    Abstract:
    Key Words: Climate change, Nuclear Power, Energy Security, Safety Culture
    Resource Type:
    Honors College Thesis
    Full Text:
    :_____________________________________________________ David Hamby Nuclear energy is very efficient and cost-effective, but the stigma attached

  • Redefining Nuclear: Exploring Stigma, Climate Change, and the Adoption of Nuclear Power in Southeast Asia

    Creator:
    Chan, Allen M.
    Abstract:
    Nuclear energy is very efficient and cost-effective, but the stigma attached to it hinders its expansion around the world. However, with rising concerns over climate change and the fact that nuclear energy effectively has zero greenhouse gas emissions, there is an opportunity for nuclear to be more acceptable as a...
    Resource Type:
    Honors College Thesis
    Full Text:
    :_____________________________________________________ David Hamby Nuclear energy is very efficient and cost-effective, but the stigma attached

  • 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