Experimental results for the angular distribution of scattered ultrasound in water from a 0.635 mm diameter steel sphere embedded in agar were obtained for interrogating frequencies of 1.0, 2.25, 3.5 and 5.0 MHz. The experimental results compared favorably with theoretical predictions based on the work of Faran. The results for both theory and experiment are presented in the form of the Differential Scattering Cross Section (DSC) for scattering angles from 170° to 44°. The implications of this study on calculating the expected scattering behavior of gelatin based ultrasound phantoms are briefly discussed.
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3.
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BurkeT.M., Quantitative Characterization of the Ultrasonic Scattering Nature of Tissue and Tissue Mimicking Materials, Ph.D. disseration (University of Wisconsin, 1983).
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AbramowitzM.StegunI.A., Handbook of Mathematical Functions, Chapt. 10, (Dover, New York, 1970).
