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Finite difference modelling of the ultrasonic diffraction in biological tissues and viscous fluid media

type de publication      communication internationale avec actes publiés
date de publication 2003
auteur(s) Alia Ahlem; Bouaoua Noureddine; Djelouah Hakim
conférence World Congress on Ultrasonics 2003
     dates de 07-09-2003 à 10-09-2003
     lieu Paris
     nom des actes Proceedings of the World Congress on Ultrasonics 2003
pages 1031 – 1034
ISBN / ISSN 2-9521105-0-6
résumé In this paper, Finite Difference (FD) formulations in cylindrical co-ordinates have been used to model the field radiated, in a biological tissue and a viscous fluid, by a circular transducer embedded in a rigid baffle . These two media have been described by models where the attenuation is respectively proportional to the frequency and to the square of the frequency.
mots clés biological tissue, viscous fluid, difraction, ultrasound
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