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Journal of Diagnostic Medical Sonography
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Beam Steering and Focusing With Linear Phiased Arrays

W. R. Hedrick, PhD

D. L. Hykes, PhD

Radiology Department, Aultman Hospital, Canton, Ohio; Radiology Department, St. Joseph Hospital and Health Center. Lorain, Ohio; Northeastern Ohio Universities College of Mledieine, Rootstows, Ohio.

The linear phased array is a type of multielement transducer in which each crystal is controlled independently during transmission and reception. The techniques of beam steering, transmit focusing, and dynamic focusing are discussed with illustrative examples. Advantages and disadvantages of linear phased arrays are presented.

Key Words: beam formation • beam steering • dynamic focusing • linear phased array • transmit zone focusing

Journal of Diagnostic Medical Sonography, Vol. 12, No. 5, 211-215 (1996)
DOI: 10.1177/875647939601200502
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