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Filtering by: Creator Turner, David P. Remove constraint Creator: Turner, David P. Advisor Hamby, David M. Remove constraint Advisor: Hamby, David M. Degree Level Master's Remove constraint Degree Level: Master's

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  • 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

  • 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:
    AN ABSTRACT OF THE THESIS OF Joshua P. Herrera for the

  • 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

  • Progress in the development of a portable phoswich-style skin contamination dosimeter

    Creator:
    Tang, Matthew M.
    Abstract:
    The Code of Federal Regulations (10CFR20.1201) mandates occupational dose limits to the shallow, lens and deep tissue layers. The NRC-accepted procedure of estimating dose to these layers from contamination events is laborious. The current work aims to further the development of a portable phoswich-style skin dosimeter that will operate in...
    Resource Type:
    Masters Thesis
    Full Text:
    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

  • Prototyping a triple-layer phoswich detection system

    Creator:
    Duncan, Christopher L.
    Abstract:
    Multi-layer optically coupled scintillation based radiation detectors, known as phoswich detectors, have rapidly evolved in recent years. During the same time, digital signal processing has improved radiation discrimination accuracy and enhanced reliability, while reducing complexity and size of traditional analog signal processing methods. A new generation of high-speed radiation detectors...
    Resource Type:
    Masters Thesis
    Full Text:
    : David M. Hamby Multi-layer optically coupled scintillation based radiation detectors, known as

  • 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

  • Investigation into the effects of subsurface ice deposits on the shielding of fast spectrum nuclear reactors using Martian regolith

    Creator:
    Frey, Wesley D.
    Abstract:
    As human exploration of space continues, eventually sights will be set on establishing a permanent manned habitat on the surface of Mars. The success of such a base will depend on many new and developing technologies. Low mass and high energy density power production units will be of paramount importance....
    Resource Type:
    Masters Thesis
    Full Text:
    Martian Regolith. Abstract approved: David M. Hamby As human exploration of space continues, eventually

  • 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
    Full Text:
    Microsoft Word - David Spackman M.S. Thesis -Final

  • The design, use and implementation of digital radiation detection and measurement equipment for the purpose of distance instruction

    Creator:
    Vasquez, David C.
    Abstract:
    Digital Instrumentation and Detection is becoming the future of radiation detection and measurement. Computers are able to perform digitally what before would have taken an extensive array of analog equipment. The art of teaching radiation detection and measurement is following this same pattern of a shift from purely analog to...
    Resource Type:
    Masters Thesis
    Full Text:
    ABSTRACT ON THE THESIS OF David C. Vasquez for the degree of Master of Science in Radiation Health