Table 3
VUV destruction cross-sections for pure indene and indene/water ice samples.
| Sample | ϕav 1013 ph. cm-2 s-1 | σdes 1458 cm-1 10-18 cm2 | σdes 768 cm-1 10-18 cm2 | D½ 1458 cm-1 eV molecule-1 | D½ 768 cm-1 eV molecule-1 |
|---|---|---|---|---|---|
| VUV1 | 4.8/0.79 | 6.8/34 | 15/72 | 25/50 | 11/23 |
| VUV2 | 5.0/0.85 | 1.3/8.0 | 8.3/59 | 130/211 | 20/29 |
| VUV3 | 2.2/0.75 | 50/90 | 67/96 | 14 /25 | 10/26 |
| VUV4 | 1.9/1.1 | 34/97 | 49/135 | 54/35 | 37/25 |
Notes. The two values listed in each column correspond to calculations performed assuming different VUV absorption cross-sections for indene (σaindene: 3 × 10-17 cm2 or 3 × 10-16 cm2). ϕav, average photon flux (±25%, Eq. (3)); σdes, destruction cross-section (±30% for pure indene, ±40% for mixtures, fit to Eq. (2)). D½ , are the half-life doses estimated using Eq. (7) or (8).
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