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231223s2011 xx |||||o 00| ||eng c |
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|a 10.1109/TUFFC.2011.1807
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|a eng
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|a Silva, Glauber T
|e verfasserin
|4 aut
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|a Off-axis scattering of an ultrasound bessel beam by a sphere
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|c 2011
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 09.06.2011
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|a Date Revised 23.02.2011
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|a published: Print
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|a Citation Status MEDLINE
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|a In this paper, the scattering of an ultrasound zero-order Bessel beam by a rigid sphere in the off-axis configuration is studied. The beam is described through the partial wave expansion. The beam-shape coefficients which represent the amplitude of each multipole mode of the partial wave expansion are computed by numerical quadrature. Calculations are presented for both near- and far-field off-axis scattering. The far-field scattering is examined in both Rayleigh and geometrical acoustic limits. Results demonstrate that the scattered pressure in the off-axis case may significantly deviate from that in the on-axis configuration. In addition, the directive pattern of the scattered pressure is highly dependent on the relative position of the beam to the sphere
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1986
|g 58(2011), 2 vom: 15. Feb., Seite 298-304
|w (DE-627)NLM098181017
|x 1525-8955
|7 nnns
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|g volume:58
|g year:2011
|g number:2
|g day:15
|g month:02
|g pages:298-304
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|u http://dx.doi.org/10.1109/TUFFC.2011.1807
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