Comparison of an angular spectrum method and a Green's function method for nonlinear propagation of pulsed acoustic fields from medical phased array transducers

Conference paper (2007)

Authors

J. Huijssen Electromagnetism
M.D. Verweij Electromagnetism
N de Jong External organisation
Research Group
Electromagnetism
More Info
expand_more

Published Date

2007

Language

Undefined/Unknown

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Research Group

Electromagnetism

Abstract

Predictions of nonlinear ultrasound beams of a medical phased array transducer, steered at 0, 22.5 and 45 degrees, and generated by a forward-wave and a full-wave numerical model are presented. The results from both models show a good agreement in the unsteered situation and in all fundamental field profiles, but they deviate significantly in the harmonic field profiles for the steered situations.