An empirical estimation of interatomic potentials on the base of data of primary radiation damages in metals

On the basis of the analysis of experimental data on primary radiation damages in solids, a choice of the parameters was made for estimation of collision cross sections. As a result, it allows determining an adequacy of the model potentials of interatomic interaction. An empirical screening function has been deduced for solids with relatively not high atomic density which is close to the mathematical function obtained for Moliere potential in the range of ratio of collision parameter to Firsov screening radius from 1 to 20. Empirical screening function for solids with high atomic density is conforming to that for solids with hot-high atomic density at relatively low convergence distance only, and at a large distance it decreases faster than it predicted by model potentials. Moliere-type expressions for the both empirical screening functions are presented