J. Phys. IV France
Volume 137, November 2006
Page(s) 79 - 86
Publié en ligne 23 décembre 2006
35th Winter School on Wave and Quantum Acoustics
J. Bodzenta, M. Dzida and T. Pustelny
J. Phys. IV France 137 (2006) 79-86

DOI: 10.1051/jp4:2006137015

The multi-element probes for ultrasound transmission tomography

T. Gudra and K.J. Opielinski

Institute of Telecommunications, Teleinformatics and Acoustics, Wroclaw University of Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland

(Published online 23 December 2006)

The paper presents a method of calculating the acoustic field distribution for multi-element probes designed for uses in Ultrasound Transmission Tomography (UTT). The method allows us to determine the acoustic field for different ultrasonic setups of elementary transducers of the multi-element probe with an assigned geometry of their positions. The basis of this method is summing acoustic fields generated by elementary transducers by means of geometrical transformations of coordinates of location of discussed points of the acoustic field against each of the transducers. By means of this method the distributions of acoustic fields for different configurations of the transducers of multi-element linear and ring probes were calculated in selected planes. The obtained results were the basis for elaborating two models of multi-element probes: a linear probe - consisting of 128 elementary transducers and a ring probe consisting of 1024 elementary transducers. In order to verify the calculation results measurements of acoustic field distribution were also carried out for selected sectors of these probes.

© EDP Sciences 2006