Dear FLUKA experts,
I was using isotope card, and while using Am - 241, I got an error message saying :
Abort called from DEDX reason Exceeded upper dp/dx abscissa. Run stopped!
STOP Exceeded upper dp/dx abscissa.
From the previous discussion threads, I could see that this issue can be caused if the energy value in beam card is less than the sampled energy. I have used 5 MeV, even 1 GeV, still I got the error. If I change this isotope to cobalt, no error is there. Can you please guide me? Is this because alphas have very small range in air ?
Here are the test files: