The scattering of ultrasound by cylinders: Implications for diffraction tomography

Brent S. Robinson, James F. Greenleaf

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

The validity of wave equations employed as system models in acoustical diffraction tomography is investigated using simulations and measurements of the scattering of plane ultrasound waves by cylinders. It is demonstrated by simulation and experiment that it can be appropriate to neglect density fluctuations and shear waves, implying that the commonly used form of the wave equation suitably describes scattering by fluctuations of acoustic speed and absorption. Diffraction tomographic reconstructions of simulated data reveal the importance of absorption, the behavior of the real and imaginary parts of the reconstructed refractive index, and the relative advantages and limitations of the Born and Rytov approximate transformations.

Original languageEnglish (US)
Pages (from-to)40-49
Number of pages10
JournalJournal of the Acoustical Society of America
Volume80
Issue number1
DOIs
StatePublished - Jul 1986

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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