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)
Author(s)

J Huijssen (TU Delft - Electromagnetism)

Martin Verweij (TU Delft - Electromagnetism)

N De Jong (External organisation)

Research Group
Electromagnetism
More Info
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Publication Year
2007
Research Group
Electromagnetism
Bibliographical Note
NEO@en
Pages (from-to)
1740-1743
ISBN (print)
1-4244-1384-2

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.

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