P0 0.25[MPa] "Source pressure amplitude"
f0 1[MHz] "Source frequency"
omega0 2*pi*f0 "Source angular frequency"
T0 1/f0 "Source period"
alpha_water 0.025[1/m] "Absorption coefficient of water at 1 MHz"
alpha_tissue 8.55[1/m] "Absorption coefficient of tissue phantom at 1 MHz"
c_water 1484[m/s] "Speed of sound in water"
c_tissue 1568[m/s] "Speed of sound in tissue phantom"
rho_water 1000[kg/m^3] "Density of water"
rho_tissue 1044[kg/m^3] "Density of tissue phantom"
BA_water 5.2 "Parameter of nonlinearity of water"
BA_tissue 7.4 "Parameter of nonlinearity of water"
delta_water 2*alpha_water*c_water^3/omega0^2 "Sound diffusivity of water"
delta_tissue 2*alpha_tissue*c_tissue^3/omega0^2 "Sound diffusivity of tissue phantom"
F 60[mm] "Focal length"
r_source 62.64[mm] "Lens radius"
w_source 35[mm] "Lens aperture"
z_tissue 24.6[mm] "Starting position of tissue phantom"
h_model 95.1[mm] "Total height of the model"
r_model 43.6[mm] "Total radius of the model"
th_abs 5[mm] "Thickness of the absorbing layer"