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Filtering by: Advisor Nelson, David M. Remove constraint Advisor: Nelson, David M. Committee Member Higley, Kathryn A. Remove constraint Committee Member: Higley, Kathryn A.

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  • 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

  • Utilization for a triple-layer phoswich detector for beta spectral stripping

    Creator:
    Alkhudhiri, Bandar
    Abstract:
    To quantify the relative activity contributions of beta emitters in mixed emission source spectra, the triple-layer phoswich detector was modeled to generate beta energy absorption spectra from mixed beta sources. These mixed sources include four pure beta emitters (C-14, Tc-99, Sr-90, and Y-90). Monte Carlo N-Particle (MCNP) computer code was...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: ______________________________________________________ David M. Hamby To quantify the

  • Experimental shielding evaluation of the radiation protection provided by residential structures

    Creator:
    Dickson, Elijah D.
    Abstract:
    The human health and environmental effects following a postulated accidental release of radioactive material to the environment has been a public and regulatory concern since the early development of nuclear technology and researched extensively to better understand the potential risks for accident mitigation and emergency planning purposes. The objective of...
    Resource Type:
    Dissertation
    Full Text:
    : ________________________________________________ David M. Hamby The human health and environmental effects following a postulated accidental

  • 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