Stopping power of heavy ions at low velocity

ABSTRACT In the present work, a theoretical investigation for the interaction of heavy ions like Ar, O and Li in different targets Ar, Kr and N at the low velocity region 2 3 1 / o v ? v z has been investigated by using Lindhard and Scharff [1] formula for electronic interaction. The interactions of stopping power at low velocity, shows the curvature of increment vary from one interaction to another and fitted with sigmoid function. Also the increment is not linear as given in Lindhard formula for electronic interaction. Therefore, effective charge is important in the low velocity region. Good agreement is achieved with SRIMsoftware [2]. The mathematical formulas, found in the present work, where solved numerically and programed by writing a computer program in (Fortran-90) language with more than one subroutines.