Abstract

The CN violet system (B2Σ+ - X2Σ+) molecular emission spectrum is frequently observed in plasma sources containing hydrocarbons and nitrogen mixture. We have simulated the spectrum of (0,0) and (1,1) bands of this system for different rotational and vibrational temperatures. The influence of the noise to signal ratio has been studied, if the noise to signal ratio is about 10% we found an error of 6% at temperature 3000K and 10% at 6000K.

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