Excimer lamps actinometry

Laszlo Zs, Ilisz I, Peintler G, Dombi A (1998) VUV Intensity Measurement of a 172 nm Xe Excimer Lamp by Means of Oxygen Actinometry, Ozone Sci. Eng. 20 421 32. 

Baulch DL, Cox RA, Crutzen PJ, Hampson RF, Kerr JA, Troe J, Watson RT (1998) Evaluated Kinetic and Photochemical Data for Atmospheric Chemistry Supplement I, J. Phys. Chem. Ref. Data 11, No. 2 327-496 cited in Laszlo Zs, Ilisz I, Peintler G, Dome A (1998) VUV Intensity Measurement of a 172 nm Xe Excimer Lamp by means of Oxygen Actinometry, Ozone Sci. Eng. 20 421-432. 

Therefore the KrCl excimer lamp was used instead of the KrF 248-nm irradiation, and additionally the Xe2 excimer lamp. Different atmospheres were used for the 172-nm irradiation, because oxygen has a strong absorption band around 172 nm and ozone, oxygen-radicals, and excited molecular oxygen species are formed upon irradiation [238]. These reactive oxygen species cause photooxidation, in addition to the direct photolytic decomposition of the polymer. The irradiance of the XeCl and KrCl excimer lamps was measured by chemical actinometry. The intensity of the excimer lamps is 24 mW cm-2 while KrCl excimer lamps have an intensity of =350 mW cm-2. 

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