1. Reflection Measurement of the Scattering Mean Free Path at the Onset of Multiple Scattering
- Author
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Goïcoechea, Antton, Brütt, Cécile, Ber, Arthur Le, Bureau, Flavien, Lambert, William, Prada, Claire, Derode, Arnaud, and Aubry, Alexandre
- Subjects
Physics - Medical Physics ,Condensed Matter - Disordered Systems and Neural Networks ,Physics - Applied Physics - Abstract
Multiple scattering of waves presents challenges for imaging complex media but offers potential for their characterization. Its onset is actually governed by the scattering mean free path $\ell_s$ that provides crucial information on the medium micro-architecture. Here, we introduce a reflection matrix method designed to estimate this parameter from the time decay of the single scattering rate. Our method is first validated by an ultrasound experiment on a tissue-mimicking phantom before being applied in-vivo to a human liver. This study opens important perspectives for quantitative imaging of heterogeneous media with waves, whether it be for non-destructive testing, biomedical or geophysical applications., Comment: 29 pages, 7 figures
- Published
- 2024