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Numerical and Physical Modeling of Tomography Process Based on Third-Order Nonlinear Acoustical Effects

  • V.A. BurovEmail author
  • A.A. Shmelev
  • O.D. Rumyantseva
Conference paper
Part of the Acoustical Imaging book series (ACIM, volume 30)

Abstract

The possibility of using the nonlinear effect of the third-order combination wave generation is analyzed for medical diagnostic goals. This effect makes it possible to implement the tomography of a spatial distribution of acoustical nonlinear parameters. The contributions by both purely third-order nonlinear scattering and twofold second-order nonlinear scattering are estimated. These two parallel developing competitive processes create two similar effects, which, however, can be separated. The two-dimensional experimental scheme, which contains just three transmitters with broadband modulation of two primary waves and one receiver, is proposed. The model numerical and physical experiment results are presented.

Keywords

Medical tomography Nonlinear parameters 

Notes

Acknowledgements

This study was supported by the President of the Russian Federation, grant number NSh-2906.2008.2, and by the Russian Foundation for Basic Research, project no. 07-02-00239.

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Department of Acoustics, Faculty of PhysicsMoscow State UniversityMoscowRussia

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