Dear all,
I'm new in k-Wave. I would like to make a transducer ultrasound source and observe the pressure field and intensity in the focus using different media (tissues). From examples and k-Wave user manual, I understood how to make a curved transducer element and define a time varying source (from tvsp transducer field patterns), and from ewp layered medium example, I know how to make and define two layers with different properties.
I want to simulate properties of different tissues like water, skull and others, modeling these tissues as spheres and shells in a 3D view or circle and concentric rings in a 2D view.
I know that for solids can be used "Time domain wave propagation in elastic media" (pstdElastic2D or pstdElastic3D) functions and for fluids can be used "Time domain wave propagation in fluid media" (kspaceFirstOrder2D or kspaceFirstOrder3D) functions.
So I have some questions about it.
i. How can I define different tissues? Where some of these are not solid nor fluids ?
ii. I want layered media, not in a linear shape but a sphere and shell shape in 3D or a circle and rings in 2D, and the circle and each ring must have properties of each tissue.
So how can I assign different properties at each concentric ring/shell ?
Thanks in advance,
Mattia STEFANO