The file format used to import cross-section data is almost the same as the format proposed by Hagelaar in Ref. 4. The best way to get the cross-section data in the correct format is to modify the file Ar_xsecs.txt which is available in the Plasma Module Applications Libraries folder.

For each electron impact reaction, the lookup table of electron energy (eV) versus collision cross section (m2) allows electron transport properties and source coefficients to be computed. As an example, a set of collision cross sections for oxygen are shown in Figure 2-1.