Well then, please read what those slides say. Then read what I wrote. The Bragg peak is about energy deposition, not the number of particles arriving at some p

Well then, please read what those slides say. Then read what I wrote. The Bragg peak is about energy deposition, not the number of particles arriving at some point. When the energy of a particle changes going through the medium, the absorption changes. Still an exponential curve, just piece-wise exponential. Look at slide 11, that cutoff. Look at the logistic formula for it and its limit going right: still an exponential.