Preface

Abstract

20th Anglo-French Physical Acoustics Conference (AFPAC 2023) FOREWORD After two successive postponements due to a well-known malicious virus, the twentieth AFPAC was organized in France in Fréjus at the Villa Clythia, from January 24 to 27, 2023. To celebrate this twentieth edition by something special to be remembered, a picnic on the beach followed by a magnificent walk in the Estérel massif were organized, in very favorable weather (as shown by the picture below).This year again, the bet was successful! During the five half-days of conferences, 33 oral presentations including four invited talks were given, on very varied themes, all in the area of physical acoustics.The four high quality invited talks concerned subjects as varied as “The cochlea seen as an active metamaterial” by Fabrice Lemoult, “Guided wave testing of pipelines” by Mike Lowe, “Miniature ultrasonic surgical devices for integration with surgical robots” by Margaret Lucas and “Ultrasound backscattering by aggregating red blood cells for hematopathology” by Émilie Franceschini. The number of questions at the end of each of the 33 presentations was only a reflection of their high quality, sparking interest and cross-disciplinary scientific discussions, entirely in line with what the AFAPC wishes to promote.The two Rocard 2022 prizes (prize of the Société Française d’Acoustique to distinguish promising young researchers after their PhD) were awarded to Xinxin Guo and Matthieu Malléjac during this edition.Alain Lhémery (CEA-LIST, France), Samuel Raetz (Le Mans Université, France), SFA / GAPSUS, Nader Saffari (UCL, UK), Theodosia Stratoudaki (University of Strathclyde, UK), IOP / PAG.