Scattering of Ultrasound by Ellipsoidal Cavities

Before I begin I would like to emphasize that the work reported here is the result of a team effort, and was carried out in close collaboration with Neil Paton of the Science Center in the sample fabrication, Ken Lakin of USC in the characterization of the transducers, Dick Cohen of the Science Center in the theoretical calculations from exact theory, John Richardson and Dick Elsley of the Science Center in the Fourier analysis of the ultrasonic pulses and the synthesis of the calculations over the band width of the transducers. We thank Jim Krumhansl and his group at Cornell University for the Born approximation results and Lazlo Adler of the University of Tennessee for the Keller theory results