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. 2011 Jun 30;38(7):4372–4385. doi: 10.1118/1.3601017

Table I.

Nominal parameter values.

Frequency Radius of curvature Aperture width Length Transducer to skin distance Attenuation coefficient Transducer emittance
f (MHz) R (mm) r (mm) L (mm) d (mm) α (Np/cm/MHz) Ie (W/cm2)
3.0 60 60 30 30 0.04a 3.0
a

Reference 63.