Questions about Bragg Peak

Dear FLUKA experts,
I tried to use FLUKA to simulate the bragg peak and plotted the curve. However, I found that the curve was not as smooth as I thought. (The image was shown below)


Here is my .imp file
proton.inp (1.1 KB)

Did I set anything wrong in my .imp file?

Thank you so much for your attention.


Dear @21shzong,

The forum is provided with a pretty good “Search” functionality. Using it, one would find that this question has already been asked and answered.

Dear amario,

Thank you so much for your clear answer!