SRIM-Based Numerical Fitting And Comparison With PSTAR For Proton Stopping Power In Al, Cu, And Pb

Authors: Wafaa N. Jasim

Abstract: In this research, we conducted a theoretical study to calculate the stopping power of protons in aluminum, copper, and lead for energy ranges between 0.2 and 2.0 MeV. We used SRIM 2013 software to extract the stopping power values, and then numerically fitted these values using MATLAB 2015 to obtain a semi-empirical stopping power equation that describes the behavior of the stopping power with energy. The results of the proposed equation were compared with standard PSTAR data, and the comparison showed good agreement within acceptable deviation limits for most energy points. These results confirm the validity of the equation in representing the stopping power of protons in the studied materials and its potential use in radiation shielding applications and modeling charged particle-matter interactions.

DOI: http://doi.org/10.5281/zenodo.18468726