Negative dispersion in bone: the role of interference in measurements of the apparent phase velocity of two temporally overlapping signals.

@article{Bauer2008NegativeDI,
  title={Negative dispersion in bone: the role of interference in measurements of the apparent phase velocity of two temporally overlapping signals.},
  author={Adam Q. Bauer and Karen R. Marutyan and Mark R Holland and James G. Miller},
  journal={The Journal of the Acoustical Society of America},
  year={2008},
  volume={123 4},
  pages={
          2407-14
        }
}
In this study the attenuation coefficient and dispersion (frequency dependence of phase velocity) are measured using a phase sensitive (piezoelectric) receiver in a phantom in which two temporally overlapping signals are detected, analogous to the fast and slow waves typically found in measurements of cancellous bone. The phantom consisted of a flat and parallel Plexiglas plate into which a step discontinuity was milled. The phase velocity and attenuation coefficient of the plate were measured… CONTINUE READING

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Phase velocity and attenuation predictions of waves in cancellous bone using an iterative effective medium approximation

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