Dear GEANT4 Gurus,
This might be a dumb question but I am having a hard time understanding from my research just what is a voxel. why I want them, how do they affect things, and how do I get them.
In my example, a modified Testem11 to allow gps , I am trying to mimic the results of someone else. Their paper states that “the thickness of the laterally infinite scoring voxel are 0.02R_0, m where R_0 is the continuous slowing down range (CSDA) or the primary electrons”.
I can get my Edep curve to look like there’s for water at 1 MeV, but it is too high in energy by a little more than twice the published amount. I don’t know why this is, and can only assume that it has something to do with the voxels, or if the Max step length still needs to be set to 1% the CSDR, both things I can not seem to figure out despite heavy research. I have been able to match all the other parameters that they described to the best of my knowledge.
I’m very new to GEANT4 and any code involved as I have only been at this for two weeks so I apologize if I am asking stupid questions, but I am trying to get this done asap so I can finish my thesis before Dec.