Search Constraints

Start Over
Filtering by: Creator Kelley, John Roberts Remove constraint Creator: Kelley, John Roberts

Search Results

  • The design and construction of an ionization chamber to measure background radiation

    Creator:
    Weaver, Kenneth Earl
    Abstract:
    An ionization chamber was constructed, using a fiberglass wall sphere, for the purpose of measuring background radiation. The system consists of the fiberglass wall chamber, 38.85 liters in volume, air filled, not sealed, used in conjunction with a precision capacitor, nulling voltage supply and electrometer. It was calibrated against a...
    Resource Type:
    Masters Thesis
    Full Text:
    RADIATION Abstract approved: Redacted for privacy John P. Kelley An ionization chamber was constructed

  • An analysis of the effects of Boron and plant growth regulators on flower development in Filbert, Corylus avellana L.

    Creator:
    Kelley, John Roberts
    Abstract:
    Three distinct stages of flower cluster abscission were identified prior to fertilization: flowers which did not begin development (stage 1), flowers which had begun development (stage II) and clusters which had begun to form distinct nuts (stage III). Abscission of stages I and II coincided with a rapid increase in...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF John Robert Kelley for the degree

  • Using a single-well push-pull test to estimate mass transfer rate parameters

    Creator:
    Kelley, Michael John
    Abstract:
    More efficient methods are needed for the in-situ evaluation of mass transfer parameters which describe the movement of solutes through aquifer material. The objective of this study was to develop a method for estimating diffusion rate and capacity coefficients using a single-well, "push-pull" tracer test. The method consists of the...
    Resource Type:
    Masters Thesis
    Full Text:
    rate parameters AN ABSTRACT OF THE THESIS OF Michael John Kelley for the degree of Master of Science

  • A study of the thermal characteristics of x-ray tube housings

    Creator:
    Stovall, John Walter
    Abstract:
    The relationship of x-ray tube housing temperature to duty cycle was studied for a superficial therapy x-ray installation, a dental radiographic installation, and a rotating-anode medical diagnostic installation. Thermistors were used to measure the tube housing temperature at points selected to be representative of thermal conditions on the surface of...
    Resource Type:
    Masters Thesis
    Full Text:
    ACKNOWLEDGMENT The author wishes to express his sincere appreciation to Mr. John P. Kelley for his guidance

  • Scattered radiation from bedside radiographic examinations

    Creator:
    Kellner, JoEllen Gretzinger
    Abstract:
    The purpose of this study was to investigate the distribution and magnitude of scattered radiation from a typical mobile radiographic examination as an aid in evaluating the potential health hazards of the scattered radiation. Also discussed are current radiation protection standards and recommendations for mobile radiography. A Manonite phantom represented...
    Resource Type:
    Masters Thesis
    Full Text:
    and John Robert Cunningham. The physics of radiology. 3d ed. Springfield, Charles C. Thomas, 1969. 800

  • The design, construction and calibration of a low-energy, low exposure-rate ionization chamber

    Creator:
    Clarke, Arthur Porter
    Abstract:
    A low-energy, low-exposure-rate, guarded-field ionization chamber system with a sensitive volume of approximately 1040 cm³ and an exposure-rate range from 60 mR/h to less than 0.5 mR/h was designed, constructed and calibrated. The calibration was effected by constructing and calibrating a 60 cm³ volume transfer chamber of similar design against...
    Resource Type:
    Masters Thesis
    Full Text:
    IONIZATION CHAMBER Abstract approved: Redacted for Privacy John P. Kelley 3 A low-energy, low-exposure

  • Pulse reader for ionization chambers

    Creator:
    Boothe, Gary F.
    Abstract:
    A pulse reader for ionization chambers has been developed, tested, and calibrated. An insulated gate field effect transistor (IGFET) was used to detect the pulses and Victoreen Model 362 Pocket Chambers were used as ionization chambers. The energy dependence of the Victoreen Model 362 Pocket Chamber was determined to be...
    Resource Type:
    Masters Thesis
    Full Text:
    for Ionization Chambers Redacted for PrivacyAbstract approved: John P. kelley /1 A pulse reader for

  • The distribution of leakage radiation from an unshielded diagnostic-type x-ray tube housing

    Creator:
    Gragg, Royce Lynn
    Abstract:
    The objective of this study was to determine the distribution of leakage radiation from two unshielded diagnostic-type X-ray tube housings. This information was used to determine the shielding required in the housings to bring them into compliance with the definition of a diagnostic-type protective tube housing, as set forth by...
    Resource Type:
    Masters Thesis
    Full Text:
    TUBE HOUSING Abstract approved: Redacted for Privacy John P. Kelley The objective of this study was

  • Spatial and age class analysis of managed western juniper (Juniperus occidentalis) woodlands in central Oregon

    Creator:
    Zophy, Kelley T.
    Abstract:
    Juniper is a native species to Oregon and confers ecological benefits to wildlife when it is at savannah and transitional densities. Its range and extent have fluctuated with climatic change, but the current range expansion is unprecedented in its extent. The range expansion has been associated with the degradation of...
    Resource Type:
    Masters Thesis
    Full Text:
    THESIS OF Kelley T. Zophy for the degree of Master of Science in Forest Resources presented on June

  • Time-domain modeling of heaving point absorber wave energy converters, including power take-off and mooring

    Creator:
    Ruehl, Kelley
    Abstract:
    Wave energy conversion is still in its infancy, and in order for it to become a commercially viable technology, developers, investors and utilities need to estimate a Wave Energy Converter's (WEC's) performance for the wave climate of a potential installation site. With the goal of estimating a design's power output...
    Resource Type:
    Masters Thesis
    Full Text:
    Point Absorber Wave Energy Converters Kelley Ruehl, Robert Paasch, Ted K.A. Brekken, and Bret Bosma