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Practice of Kinetics (Comprehensive Chemical Kinetics, Volume 1)

Practice of Kinetics (Comprehensive Chemical Kinetics, Volume 1)

Practice of Kinetics (Comprehensive Chemical Kinetics, Volume 1)

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3 APPARATUS 53Heated-Fig. 41. Xenon resonance lamp in a photolysis system. From ref. 139.or baking to remove water. The lamp is operated by a 2450Mc.sec-' discharge,125 watt microwave power, triggered by a Tesla discharge. Maximum intensity(5 x 14 quanta.sec-')is obtained with 0.7 torr (Xe) and 1.0 torr (Kr) respectively.A mixture <strong>of</strong> rare gas and helium gives more intense light than does the pure gas.The average life <strong>of</strong> the lamp is 10 hours. For a review <strong>of</strong> vacuum uv photochemistrysee McNesby and OkabeI4'.Pyrex Apiezonwax4cmIFig. 42. A simple electrodeless rare-gas resonance lamp for use in a microwave field. Fromref. 147.References pp. 104-111

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