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Two wavelength-CARS thermometry of hydrogen

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Abstract

In this work, we present the results of two-wavelength (2λ)-CARS thermometry of hydrogen at temperatures from 300–1200 K. The choice of the pair of spectral lines for the 2λ-CARS thermometer with respect to optimal temperature sensitivity within a given temperature range was analysed. Software was developed to process the experimental data and calculate the temperature. In the experiments, temperature and density were measured in a heated cell using single-shot and averaged CARS intensities in the pure rotationalS branch. The accuracy achieved and its dependence on measured temperature values and on the number of averaged shots was analysed.

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The sponsoring of this work by the Stabsabteilung Internationale Beziehungen at the Kernforschungszentrum Karlsruhe under project number RUS 222.12 is gratefully acknowledged

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Clauss, W., Il'yukhin, A.A., Kozlov, D.N. et al. Two wavelength-CARS thermometry of hydrogen. Appl. Phys. B 62, 279–285 (1996). https://doi.org/10.1007/BF01080956

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  • DOI: https://doi.org/10.1007/BF01080956

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