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Filtering by: Creator Freitag, Camille M. Remove constraint Creator: Freitag, Camille M. Academic Affiliation Nuclear Engineering and Radiation Health Physics Remove constraint Academic Affiliation: Nuclear Engineering and Radiation Health Physics

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  • Radiation dose and risk in interventional neuroradiology

    Creator:
    Magill, Dennise M.
    Abstract:
    BACKGROUND/PURPOSE: Exposure from medical radiation sources are on the rise in the United States. Often the highest potential source of radiation dose to patients and radiology staff occur during interventional radiology procedures performed using fluoroscopy and digital subtraction angiography (DSA) to provide image guidance in minimally invasive surgical procedures. Several...
    Resource Type:
    Masters Thesis
    Full Text:
    2 2 AN ABSTRACT OF THE THESIS OF Dennise M

  • Comparison of eye plaque dosimetry using deterministic and Monte Carlo methods

    Creator:
    Bristol, Jonathan R.
    Abstract:
    Eye plaque brachytherapy is an established technique for the treatment of ocular melanoma that allows for the preservation of the affected eye as well as visual function. A common treatment planning system for eye plaque procedures, Plaque Simulator (PS), assists physicists in calculating the radiation dose to the tumor and...
    Resource Type:
    Masters Thesis
    Full Text:
    and Monte Carlo Methods Abstract approved: Camille J. Lodwick Eye plaque brachytherapy

  • 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

  • Comparison of two commercial detector arrays for RapidArc quality assurance

    Creator:
    Asay, Matthew Jamin
    Abstract:
    Radiation therapy is used in approximately half of all cancer treatments. The rapid advances in radiation therapy have led to techniques that are much more complex and therefore must be more carefully assessed for safety and efficacy. Accurate quality assurance methods must be implemented to provide patient safety and confidence...
    Resource Type:
    Masters Thesis
    Full Text:
    : Camille J. Lodwick Radiation therapy is used in approximately half of all cancer treatments

  • Characterization of the onset of charged particle equilibrium for photon dose to skin

    Creator:
    Ryan, Michael C.
    Abstract:
    In the U.S., the Nuclear Regulatory Commission (NRC) is responsible for setting annual dose limits. For cases of hot particle contamination these limits are set at depths in skin of 7 mg/cm², 300 mg/cm², and 1000 mg/cm². However, at such shallow depths, the lack of charged particle equilibrium (CPE) precludes...
    Resource Type:
    Masters Thesis
    Full Text:
    &/;43G!!(12:20;3:/H2;/97!98!;13!)7>3;!98!(12:=33!;9!;13!%M/75

  • Comparison of secondary neutron dose from 10 MV intensity modulated radiation therapy and volume modulated arc therapy

    Creator:
    Catchpole, Mary Elizabeth
    Abstract:
    Photoneutron contamination produced during high-energy, external beam radiotherapy can contribute to total patient dose. This aspect of unwanted dose is not currently evaluated for patients undergoing radiation therapy. While multiple studies have examined the neutron dose from beams with energies above 10 MeV, research assessing neutron dose from a 10...
    Resource Type:
    Masters Thesis
    Full Text:
    : _____________________________________________________________________ Camille J. Lodwick Photoneutron contamination produced during high-energy, external beam

  • Monte Carlo derived absorbed fractions in a voxelized model of a rainbow trout

    Creator:
    Hess, Catherine A.
    Abstract:
    The International Commission on Radiological Protection (ICRP) has modeled twelve reference animals and plants (RAPs) with simple geometric shapes to be used when estimating radiation dose to non-human biota (NHB). In recent years, there has been interest in creating more realistic models in order to better understand the radiation interactions...
    Resource Type:
    Masters Thesis
    Full Text:
    Fractions in a Voxelized Model of a Rainbow Trout Abstract approved: Camille J. Palmer The

  • Characterization of a fiber optic coupled dosimeter for clinical electron beam dosimetry

    Creator:
    Nitzling, Kevin Dave
    Abstract:
    Fiber-optic-coupled dosimeters (FOCDs) are a relatively new method in which to obtain in-vivo dose concomitant with radiation treatment. Accurate live dosing can be achieved virtually anywhere due to their small dimensions (0.2 mm) which can be accommodated by a catheter. The purpose of this experiment is to characterize the electron...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: Camille J. Lodwick Fiber-optic-coupled dosimeters (FOCDs) are a relatively

  • Patient radiation exposure variability and minimization in mobile, C-arm fluoroscopy

    Creator:
    Van Wieren, Robert T.
    Abstract:
    BACKGROUND: The frequency of C-arm fluoroscopy procedures is increasing and it has become prudent to increase the awareness of patient radiation exposure to minimize patient risk. There is a strong potential for variability in patient exposure levels and a need for minimizing unnecessary exposure. The variability in C-arm fluoroscopy can...
    Resource Type:
    Masters Thesis
    Full Text:
    and Minimization in Mobile, C-arm Fluoroscopy Abstract approved: Camille J

  • Estimation of the setup accuracy of a surface image-guided stereotactic positioning system

    Creator:
    Meng, Lu Zheng
    Abstract:
    Purpose: Stereotactic radiation therapy and stereotactic radiosurgery deliver radiation precisely to tumors, using special equipment to position and demobilize patients. The VisionRT system, with its component AlignRT, is a non-invasive stereotactic positioning and tracking system that uses cameras to capture infra-red images of patients, and process these images, to obtain...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Camille J. Lodwick Purpose: Stereotactic radiation therapy and stereotactic