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Table 1.

Gas mixture composition, expressed as partial pressure ratio, the water column density (NH2O), the water ice thickness dH2O and O2 column density (NO2) after a total deposition time of 1 min for thick ice for each experiment presented in this paper.

Exp H2O O2 NH2O/1018 mol cm−2 dH2O (μm) NO2/1018 mol cm−2
#1 9 1 1.94 0.68 0.02
#2 4 1 1.42 0.50 0.02
#3 3 1 1.12 0.39 0.07
#4 2 1 2.17 0.77 0.21
#5 1 1 0.95 0.33 0.28
#6 1 2 0.58 0.21 0.16
#7 1 4 0.25 0.09 0.32
#8 1 9 0.08 0.03 0.25

Notes. The uncertainty for NH2O and dH2O lie within 20–30%.

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