Hi,
I am new to k-wave and have some questions, I'm trying to simulate a commercial ultrasound transducer with 128 elements which 64 elements of it are activated in a plane wave scenario.
1- If I set the focus point to inf (or very large values) when I am defining transducer parameters will I have plane wave? If not, how I can simulate plane wave for a commercial probe then?
2- Based on the pitch and kerf parameters I need at least 1024 grid points in x and y direction (only for the transducer probe face)(3.75 cm probe 4 grid point for piezo and extra 4 grid points for kerf). The whole medium is then 4.24*4.24 cm and the probe plane is located just outside the PML. The same transducer will be used as sensor to record the data.
As the transducer class only works in 3D mode, these many grid points are computationally expensive, what happens if I set Nz to a very small number while maintaining dz=dx=dy (say Nz = 16,32, etc...)?
3- If this is not possible to do what are your suggestions for my simulation? Should I use 2D simulation and set everything manually instead of using transducer class? (BTW i'm using 3D c++ version for CUDA but I run it in MATLAB (I have a GeForce GTX 1080 Ti))