At the beginning of each simulation run, the collision cross sections between the selected species are computed and sent to the PICMC worker tasks as tabulated data. Additionally, a postscript file cs.ps is generated, where each cross section curve is plotted into a graph.

The postscript files can be opened in Linux using the tool gv or okular (KDE desktop environment), under Windows ghostscript and gsview are required to open that file.

A selection of cross section sources is given in the section cross sections.