Wavefield focusing with reduced cranial invasiveness

Meles, G.A.; van der Neut, J.R.; van Dongen, K.W.A.; Wapenaar, C.P.A.

doi:10.1109/ULTSYM.2019.8925565

Wavefield focusing with reduced cranial invasiveness

Conference paper (2019)

Authors

G.A. Meles Applied Geophysics and Petrophysics -

J.R. van der Neut

K.W.A. van Dongen

C.P.A. Wapenaar ImPhys/Medical Imaging - , Applied Geophysics and Petrophysics -

Research Group

Applied Geophysics and Petrophysics () (TU Delft)

DOI: https://doi.org/10.1109/ULTSYM.2019.8925565

Focusing Brain Marchenko Invasiveness Utrasound

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Published Date

2019

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Engineering

Research Group

Applied Geophysics and Petrophysics

Abstract

Wavefield focusing can be achieved by Time-Reversal Mirrors, which involve in- and output signals that are infinite in time and waves propagating through the entire medium. Here, an alternative solution for wavefield focusing is presented. This solution is based on a new integral representation where in- and output signals are finite in time, and where the energy of the waves propagating in the layer embedding the focal point is reduced. We explore the potential of the proposed method with numerical experiments involving a 1D example and a cranium model consisting of a skull enclosing a brain.

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