Calculation of Proton Range in some organic Compounds Energies (10-900) keV

Theoretical study have been done to calculated the Range for protons in ten organic compounds which is: [ polypropylene (C3H6), Polycarbonate (C16H14O3), Mylar (C10H8O4), Polyvinylalcohol (C2H4O), Polyoxymethylene (CH2O), Polyacrylonitrile (C3H3N), Polyvinylpyrro-lidone (C6 H9 N O), Polyvinylacetate (C4H6O2), Kapton (C22 H10 N2 O5), Bakelite (C44 H36 O6)], by using SRIM 2013 program written by Mathlab language. the range calculated to protons for energy (10-900) keV, by using fitting equations and the semi empirical equation (Devise two equation), and we calculated the rate error and correlation coefficient between Range (SRIM) and Range (semi-emp) as seen in tables by using Excel program. The results are agreed with the SRIM 2013 program, so our results showed to be good.