Theoretical and Empirical Models High Energy Electrons and Positrons in Relativistic

In recent theoretical study electrons or a positron penetrate through target oil it interacts mainly in two ways, viz, slowing down process and elastic scattering. These complete each other depending upon the electron initial kinetic energy as well atomic number of material. Thus becomes very difficult to sketch exact picture preparation these particles. A comparison our evaluated cross- saction with available expremental data finding shows reasonable agreement over studied range. When Positron enters materials cross section for be majority that scattering begins gain magnitude decreasing positrons.Thus more partical beam suffers divergence from line incidence. As particles further, their energy, large. At this stage diffusion sets in. condition average cosine multi angular distributions equal 1/e electron/ positrons direction motion.