Title :
Theoretical steered beam profiles from a two-dimensional transducer array
Author :
Turnbull, Daniel H. ; Foster, F. Stuart
Author_Institution :
Dept. of Med. Biophys., Toronto Univ., Ont., Canada
Abstract :
The focusing and steering properties of pulsed 2-D arrays were theoretically investigated to characterize the parameters required for medical imaging, such as element size, spacing, and number of elements. Details of the computational methods employed are presented, and the steered-beam properties of wideband 2-D arrays are discussed. An element-reduction scheme, using a sparse array with elements randomly distributed over a square aperture, is examined
Keywords :
acoustic imaging; biomedical ultrasonics; ultrasonic transducers; element-reduction scheme; focusing; medical imaging; pulsed 2-D arrays; steering properties; transducer array; Apertures; Biomedical imaging; Biomedical transducers; Cancer; Fabrication; Focusing; Ultra wideband technology; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1989. Proceedings., IEEE 1989
Conference_Location :
Montreal, Que.
DOI :
10.1109/ULTSYM.1989.67076
