title: Behavior of ultrasounds crossing perfluorocarbon liquids and random propagation times.
abstract: Random propagation times are able to model waves attenuation and velocity. It is true for electromagnetic waves (light, radar, guided propagation) and also for acoustics and ultrasounds (acoustics for high frequencies). About the latter, it can be shown that stable probability laws are well-fitted for frequencies up to dozens of megahertz in numerous cases. Nowadays, medical applications are performed using propagation through perfluorocarbon (PFC). Experiments were done to measure attenuations and phase changes. Using these results, this paper addresses the question to know if stable probability laws can be used to characterize the propagation of ultrasounds through PFC liquids.
authors.affiliation: TéSA, 7 Boulevard de la Gare, 31500 Toulouse, France. Electronic address: bernard.lacaze@tesa.prd.fr.
authors.forename: Bernard
authors.initials: B
authors.lastname: Lacaze
mesh_terms: D005466:Fluorocarbons; D006801:Humans; D008962:Models, Theoretical; D014465:Ultrasonics
chemical_list: D005466:Fluorocarbons
keywords: Kramers–Krönig relations; Random propagation times; Stable probability laws; Ultrasonics attenuation–dispersion