Calculations of Stopping power and Range of Alpha Particles of Several Energies in different materials
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Date
2011-06
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Addis Ababa University
Abstract
In the present work we compared some new constants for the empirical relation of stopping
powers of alpha particles in the energy range 4 15Mev=amu for elements Al,Cu,Ge,Ag
and Au obtained from calculation of empirical formula and measurements of stopping
and range of ions in matter (SRIM-2000). The range formulas were obtained by directly
integrating the stopping power formula of alpha particles and the values of the ranges for
the elements are calculated and compared with SRIM-2000. The alpha energy losses have
been obtained from calculation for the elements source using alpha particle target; such
losses are deviated signi cantly from SRIM-2000 result. The deviation suggested that the
stopping powers and range given from SRIM-2000 is too small.These relations have been
also used to nd out stopping powers and ranges in semiconductors
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Calculations of Stopping power and Range