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Table 1
The seven samples analysed in this paper.
| No. | Icy mixture | Thickness | N | C | O | H | Ar | Ion projectile | Dose | Organic residue |
|---|---|---|---|---|---|---|---|---|---|---|
| (at 17 K) | (μm) | % | % | % | % | % | (eV/16u) | (at 290 K) | ||
| 1 | N2:CH4 (1:1) | 2.2 | 29 | 14 | – | 57 | – | 200 keV H+ | 126 | Res #1 |
| 2 | N2:CH4:CO (1:1:1) | 1.3 | 22 | 22 | 11 | 45 | – | 200 keV H+ | 106 | Res #2 |
| 3 | N2:CH4:H2O (1:1:1) | 1.3 | 20 | 10 | 10 | 60 | – | 200 keV H+ | 122 | Res #3 |
| 4 | N2:C8H18 (1:1) | 2.8 | 7 | 29 | – | 64 | – | 200 keV H+ | 16 | Res #4 |
| 5 | N2:C8H18 (9:1) | 2.8 | 41 | 18 | – | 41 | – | 200 keV H+ | 16 | Res #5 |
| 6 | Ar:C8H18 (10:1) | 2.8 | – | 22 | – | 50 | 28 | 200 keV H+ | 16 | Res #6 |
| 7 | CO:CH4 (1:1) | 2.2 | – | 29 | 14 | 57 | – | 200 keV H+ | 120 | Res #7 |
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