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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2017 Aug 14;64(10):1542–1557. doi: 10.1109/TUFFC.2017.2739649

Fig. 9.

Fig. 9

Distributions of the (a–c) peak positive, p+, and peak negative, p−, pressures and (d–f) intensity over beam axis (left frames) and in two perpendicular axes in the focal plane, x (center) and y (right) at increasing VDC = 50 − 200 V. Dashed vertical lines correspond to the location of the focus, z = 140.9 mm defined as a maximum of the peak positive pressure at 50 V.