Abstract

The temperature of the nitrogen gas phase in a heated graphite atomizer has been determined using coherent anti-Stokes Raman scattering (CARS). Subtle details of the temperature evolution at various locations in the tube have been identified. Considerable time-dependent temperature differences of up to 600 K between gas phase and wall, at wall temperatures from 900 K to 2600 K, have been observed combining advanced methods of evaluation of CARS-spectra with fast computer techniques.

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