Fig. 4.
(a) A sketch and general parameters of the considered array. An example of determination of the array element diameter is given for the cases of 6 mm (b), 6.5 mm (c), and 7 mm (d) sized elements. The linear axial fields of the arrays, pA/p0, calculated analytically using the Rayleigh integral (solid curves), and the fields of the equivalent spherical sources (dashed curves) are shown. Initial intensities at the array elements, necessary to obtain a fully developed shock at the focus are listed at the bottom of the figure.