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Spatial distributions of the peak positive and peak negative pressures in an axial plane x = 0 in a linear (a) and nonlinear (b, c) field of the array. Nonlinear peak positive and peak negative pressure distributions are calculated for I0 = 10 W·cm−2. The distributions are normalized by the maximum value for each quantity. The plots contain 8 contours equally distributed from the maximum to minimum pressure levels in each plot.
