Graduate Thesis Or Dissertation
 

Scattered radiation from bedside radiographic examinations

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/x346d783n

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  • 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 the patient as a scattering medium, and was exposed to the radiation from a typical mobile x-ray unit using a geometry corresponding to an abdominal examination. Measurements of tube housing leakage and scatter were made for the ranges of kilovoltages and field sizes, with data points taken in a horizontal plane around one side of the phantom. The magnitude of the scatter exposure was determined, and from this it was concluded that scatter can represent a potential hazard to the patient in an adjoining bed and to the operator. It was also concluded that although scatter exposures were not in violation of current exposure limits, they could prevent a long-range problem and that it would be wise to reexamine existing protection requirements with the intent of creating a safer radiation situation.
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