American University in Cairo. Physics DepartmentMoawad, Maged F.Shaarawi, Amr M.Besieris, Ioannis M.2015-05-262015-05-262004-06-01Moawad, M. F., Shaarawi, A. M. & Besieris, I. M. (2004). Characterization of a nonrigid sphere using the backscattered fields of acoustic X waves. Journal of the Acoustical Society of America, 115(6), 2937-2946. doi: 10.1121/1.17151110001-4966http://hdl.handle.net/10919/52598The scattering of acoustic ultra-wideband X-wave pulses by a nonrigid sphere is simulated for purposes of material identification and characterization. Using the backscattered spectrum of the X-wave pulses, a procedure is described for estimating the radius, speed of sound, and density of-the sphere. The effectiveness of the suggested technique is verified in the case that the peak of the X-wave is incident on the centers of the sphere, as well as for the off-center incidence case.10 pagesapplication/pdfenIn CopyrightAcoustic wavesBackscatteringAcoustic scatteringAcoustic wave scatteringMechanical wavesArticle - Refereedhttp://scitation.aip.org/content/asa/journal/jasa/115/6/10.1121/1.1715111https://doi.org/10.1121/1.1715111