Calculations Of Stopping Power And Range Of Alpha Particles Of Several Energies In Different Materials

In the present work we compared some new constants for the empirical relation of stoppingrnpowers of alpha particles in the energy range 4 À€€ 15Mev=amu for elements Al,Cu,Ge,Agrnand Au obtained from calculation of empirical formula and measurements of stoppingrnand range of ions in matter (SRIM-2000). The range formulas were obtained by directlyrnintegrating the stopping power formula of alpha particles and the values of the ranges forrnthe elements are calculated and compared with SRIM-2000. The alpha energy losses havernbeen obtained from calculation for the elements source using alpha particle target; suchrnlosses are deviated signi cantly from SRIM-2000 result. The deviation suggested that thernstopping powers and range given from SRIM-2000 is too small.These relations have beenrnalso used to nd out stopping powers and ranges in semiconductors

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