Energy SigmaE Alpha SigAlpha ntot imp backsc trans tried negE range straggeling Eback sigEback Etrans SigEtrans red._E PRC SiO2 Si 7.00 0.45 0.00 15.00 50000 49535 465 0 50000 0 0.4455E+03 0.1116E+03 0.2052E+04 0.1774E+04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 32817 16718