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On the Use of the Numerical Simulation of the First Positive System of N2: II. Fast Trot Estimation from the Partially Resolved (3, 0) Band

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Abstract

A fast and simple method for estimating the rotational temperature from the partially resolved (3, 0) band of the first positive system of N2 (B3Πg-A3Σu+) has been developed by numerical simulation of tire (3, 0) band profile, polynomial linear least-square fitting, and polynomial interpolation. Tire sensitivity of the proposed method is based on the temperature dependence of the relative population of the 3ΠΩ>) substates. Simple polynomial formulas allow calculation of the rotational temperature in the range of 200–1500 K from the (3, 0) band profile after reading the subband head peak values. This method has been tested on the experimental (3, 0) band emission recorded in N2 pulsed rf discharges.

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Acknowledgments

One of the authors (M.S.) undertook this work with the support of the ICTP Programme for Training and Research in Italian Laboratories, Trieste, Italy.

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Author notes

  1. M. Simek

    Present address: ICTP Trieste fellow. Permanent address: Institute of Plasma Physics, Czech Academy of Sciences, P. O. Box 17, 18200, Prague 8, Czech Republic

Authors and Affiliations

  1. Centro di Studio per la Chimica dei Plasmi CNR, Dipartimento di Chimica, Universita di Bari, Via Orabona, 4, 70126, Bari, Italy

    M. Simek & S. De Benedictis

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  1. M. Simek
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  2. S. De Benedictis
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Simek, M., De Benedictis, S. On the Use of the Numerical Simulation of the First Positive System of N2: II. Fast Trot Estimation from the Partially Resolved (3, 0) Band. Plasma Chem Plasma Process 15, 451–463 (1995). https://doi.org/10.1007/BF03651417

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  • DOI: https://doi.org/10.1007/BF03651417

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