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. Author manuscript; available in PMC: 2018 Feb 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2016 Oct 20;64(2):374–390. doi: 10.1109/TUFFC.2016.2619913

Fig. 6.

Fig. 6

Parameters of quasilinear focal waveforms and corresponding output conditions for spherical sources as a function of their F-number for different dimensionless source radii ka = 126, 147, 168, 188, 209. Results are presented for the peak positive and negative pressures, intensity at the source I0, and parameters of waveform asymmetry in terms of the ratio of peak pressures |p+/p| and the ratio of durations of the rarefaction and compression phases t/t+