L 18[cm] "Length of half sample"
f0 170[kHz] "Source center frequency"
t0 6[us] "Source time shift"
x0 -2[cm] "Source location x-coordinate"
y0 0[cm] "Source location y-coordinate"
dS 2e-7[1/m^2] "Source extent"
cs_an 2150[m/s] "Shear wave speed (anisotropic material)"
cs_iso 2350[m/s] "Shear wave speed (isotropic material)"