Cross sections used in proton-track simulations

In this paper we describe the present state-of-the-art of fully stripped ion (proton) track simulation up to the point where it becomes an electron track problem. From then on the basic interactions are not different from what Paretzke has described. Here the practical aspects are emphasized. Even though our remarks focus specifically on the radiological problem and in vapor phase, the basic principles which are discussed are, for the most part, equally applicable to other areas, eg. atmospheric physics, aeronomy, plasmas, sputtering, materials. 19 references, 5 figures