Table 1
Main experimental parameters, i.e., density of material, refractive index n1 at 632.8 nm, ice thickness d, maximum fluence, and dose.
| Sample | Density | n1 | d | Fluence | Dose | New species observed |
|---|---|---|---|---|---|---|
| (g cm−3) | (μm) | (1016 e− cm−2) | (eV/16u) | in the VUV range | ||
| O2 | 1.54(1) | 1.33 | 0.25 | 7.2 | 277.6 | O3 |
| N2 | 0.94(2) | 1.33 | 1.35 | 43 | 1746.1 | N3 |
| O2:N2 = 1:1 | 1.24(a) | 1.34 | 0.24 | 2.4 | 104.3 | O3, N2O (b), NO2 |
| NO | 1(c) | 1.41 | 0.12 | 1.8 | 80.2 | O2 (b), NO2 |
| N2O | 1.16(1) | 1.39 | 0.12 | 0.7 | 27.6 | NO2 |
| NO2 | 1.17(1) | 1.44 | 0.11 | 2.4 | 91.4 | O2 (b) |
| NO:NO2 = 1:1 | 1.1(a) | 1.42 | 0.11 | 3.9 | 157.9 | – |
| NO:N2O = 2:1 | 1.1(a) | 1.39 | 0.12 | 3.6 | 145.7 | O2 (b), N2 (b), NO2 |
| NO2:N2O = 1:1 | 1.1(a) | 1.39 | 0.12 | 3.6 | 145.7 | – |
Notes. For each experiment, we provide a list of all new species observed in the VUV range. (a) estimated average value from mixture components; (b)tentative detection; (c)no value available in the literature, hence assumed to be 1.
References. (1) Fulvio et al. (2009); (2) Satorre et al. (2008).
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