| Mixture | Ion and energy | S |
| 10-15eV cm2 molecule-1 | ||
| H2O | H+, 200 keV | 22.5 |
| H2O | H+, 1 MeV | 7.8 |
| H2O:CO = 10:1 | H+, 200 keV | 250.3 |
| H2O:CO = 10:1 | H+, 1 MeV | 88.2 |
| H2O:CO2 = 1:1 | He+, 200 keV | 175.5 |
| H2O:CO2 = 5:1 | He+, 200 keV | 445.8 |
| H2O:CO2 = 10:1 | H+, 200 keV | 265.1 |
| H2O:CO2 = 10:1 | H+, 1 MeV | 93.9 |
| H2O:CH4 = 1:1 | He+, 30 keV | 67.8 |