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Filtering by: Subject Evapotranspiration -- Equipment and supplies Remove constraint Subject: Evapotranspiration -- Equipment and supplies Advisor Trout, E. Dale Remove constraint Advisor: Trout, E. Dale

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  • A study of the deterioration of X-ray fluoroscopic screens

    Creator:
    Properzio, William Stuart, 1940-
    Abstract:
    From the time when fluoroscopic screens were first used there have been scattered references to reduction in their light output due to age, use, etc. References are scarce and usually devoid of quantitative data. A long-range program has been set up in an effort to arrive at some meaningful information....
    Resource Type:
    Masters Thesis
    Full Text:
    and daylight -type fluorescent lamp. 49 11. Spectra "Brightness Spot Meter" showing power supply

  • A study of relative speeds of medical x-ray film and intensifying screen combinations

    Creator:
    Gross, Richard Eugene
    Abstract:
    The objective of this study was to determine the relative speeds of available medical x-ray films exposed directly to x-rays and exposed in combination with various types of intensifying screens. The information obtained from this sensitometric data was used to obtain factors by which a radiographic exposure technique with one...
    Resource Type:
    Masters Thesis
    Full Text:
    /9. (Date) Title: A STUDY OF RELATIVE SPEEDS OF MEDICAL X-RAY FILM AND INTENSIFYING SCREEN

  • Measurement of peak kilovoltage across x-ray tubes by ionization methods

    Creator:
    Burnett, Bruce Merl
    Abstract:
    Voltage calibration methods used with X-ray tubes are either electrical procedures requiring direct electrical connection or ionization techniques which require no electrical connection to the generating system. One major restriction on the use of electrical methods for measuring the voltage applied to X-ray tubes is that special electrical adaptors are...
    Resource Type:
    Masters Thesis
    Full Text:
    and 67 kV. Thus, as late as 1960, investigators had been unable to supply calibration data in this

  • Design and construction of an X-ray machine for lecture demonstration

    Creator:
    Semler, Mark Orion
    Abstract:
    A design for an x-ray machine to be used as a visual aid for the instruction of x-ray theory and x-ray machine operation has been presented. From this design an x-ray machine was constructed and tested. Components used in an x-ray machine have been divided in to three sections; a...
    Resource Type:
    Masters Thesis
    Full Text:
    associated equipment, filament transformers and high-voltage valve tubes, make the development of a portable