Shell Correction, Bloch Correction and Barkas Effects in Biological Materials

Abstract

The proton has special advantage in radiation thereby because of its deep Brag peak which provides unaffected tissues. Five compounds organic and inorganic included liquid water, DNA, Adenine, Guanine and PMMA have been used in present work. The description to interactionis by dielectric formalism through Drude dielectric function for outer electrons and by general oscillator strength to describe the inner contribution,Brag rules has been applied hear for element in compounds. The investigations included shell correction, Barkas effect, Bethe and Born. The results give the influence of inner shell and Block correction. In this work Bethe correction (Barkas effect, shell, Born and Bloch correction) has been evaluated for first time for compounds under work except for  Liquid water and not clearly way for DNA. The work has been programing by Fortran- 90.