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Cavity ring-down spectroscopy of OH radicals in low pressure flame

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molecules/cm3) and large dynamic range (more than 20 000) are demonstrated. CRDS also provides accurate temperature measurements, with statistical errors less than 2%. Measured concentration profiles are in reasonable agreement with calculated values. It is observed that in the preflame zone (where the temperature is about 1000 K), the OH concentration at the first vibrational excited state is about seven times larger than the equilibrium OH(v”=1) concentration at this temperature.

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Authors and Affiliations

  1. School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel (Fax: +972-3/6409293, E-mail: cheskis@ccsg.tau.ac.il), , , , , , IL

    S. Cheskis & I. Derzy

  2. Semenov Institute of Chemical Physics, Russian Academy of Science, 4 Kosygin str., Moscow 117977, Russia (Fax: +7-095/938-2156), , , , , , RU

    V.A. Lozovsky

  3. Laboratoire de Spectrométrie Physique, CNRS (UM5588), Université Joseph Fourier, Grenoble I, B.P. 87, 38402, Saint-Martin-d’Hères Cedex, France (Fax: +33-04/76 51 45 44), , , , , , FR

    A. Kachanov & D. Romanini

Authors
  1. S. Cheskis
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  2. I. Derzy
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  3. V.A. Lozovsky
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  4. A. Kachanov
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  5. D. Romanini
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Received: 24 June 1997/Revised version: 12 September 1997

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Cheskis, S., Derzy, I., Lozovsky, V. et al. Cavity ring-down spectroscopy of OH radicals in low pressure flame . Appl Phys B 66, 377–381 (1998). https://doi.org/10.1007/s003400050404

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  • DOI: https://doi.org/10.1007/s003400050404

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