On the collision quenching of N2 +(B 2Σ+u , v = 0) by N2 and O2 and its influence on the measurement of E/N by intensity ratio of nitrogen spectral bands

Abstract

Laser induced fluorescence measurements of the rate coefficients of N+2 (B 2+u , v = 0)collision quenching by N2 and O2 are presented. The values of (8.84 ± 0.37) × 10-10 cm3 s-1and (10.45 ± 0.45) × 10-10 cm3 s-1 have been found for N2 and O2, respectively. The presentresults agree well with the literature data obtained by selective methods for ion B stateexcitation. The data are discussed in the framework of the spectroscopic evaluation of thereduced electric field in electrical discharges at high pressure, which makes use of the secondpositive system and first negative system emissions of nitrogen.


Tutti gli autori

  • G. Dilecce; P. F. Ambrico ; S. De Benedictis

Titolo volume/Rivista

Journal of physics. D, Applied physics


Anno di pubblicazione

2010

ISSN

0022-3727

ISBN

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