I have a question about the StepFunction.
I’m simulating the propagation of alpha particles in materials with energy in the order of some MeV (3-10 MeV).
I have tried both the EmStandardPhysics and the EmStandardPhysics_option3 physics lists and I have noticed that the number of steps is 1 in the first case and about 3 in the second case.
This is not sufficient for my application, because I need a more accurate energy deposit as a function of energy.
I think that this behavior is due to the StepFunction limitation and to the different StepFunction parameters in these physics lists, right?
I know that the StepFunciton parameters can be changed via the command /process/eLoss/StepFunction, but this command changes only the StepFunction parameters for electron and positron.
Is there a way to modify the StepFunciton parameters for alpha particles (and maybe other particles) via C++ code (or UI command) without creating my custom physics list? in other words, how to modify the parameters of the EmStandardPhysics lists?
Thank you for your help