دراسة فقدان الطاقة لبروتونات متفاعلة مع مواد صلبة

Abstract

In the present work theoretical study carried out on the subject (Energy loss) by using (dielectric function) where the energy loss is lost count of charged particles (protons) interacting with the solid targets (Aluminum Al, Silicon Si, Tungsten W). Taking into account the distance between the Proton and the surface of the targets. For this impact energy the main contribution to the energy loss is due to:1.The excitation of (valence - band) electrons.2.The excitation of electron (band – states) of the targets atoms.Mathematical appreciative methods used in the calculation and some of equation where programmed and executing the program to obtain a theoretical results which is shown in graphic.