Attenuation : Refraction

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Refraction Refraction is the deviation in path of the beam, occurring when the beam passes through an interface between tissues in which the propagation velocity is different, when the angle of incidence to the interface is not 90 degrees. Ie refraction is determined by differences in propagation velocity, not by differences in acoustic impedance. Therefore, Read more about Attenuation : Refraction[…]

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