Dear @rachel.hen.shukrun
- The VOXEL file mici_new.vxl has embeded material definitions of the various organs (all to AIR). So flair warns you that there is a duplicate definition in the .inp. In the FLUKA run the last assignmat will be taken. So, yes you can ignore that warning. Probably the best would have been when you create the .vxl to assign the proper materials there
- You are hitting a precision problem, since you have set as starting position (BEAMPOS) exactly on the vertex of 8 voxels. If you displace the beam by a tiny bit (few micros) in all x,y,z ensuring your particle doesn’t start on the vertex, then the code will safely find the starting point and it finishes without any problem
- I could not reproduce the problem, but it seems you are looping recursively in the regionsource routine, while you should make a simple do while loop