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The radiative lifetimes of four low vibration levels of the N 2 (C 3 Π u ) state are measured and rate constants of collisional deactivation of these states by N 2 , O 2 , H 2 and H 2 O molecules are determined with the help of emission spectroscopy. To excite levels under study a high-voltage nanosecond periodic discharge is used.
The lifetimes of N 2 (C 3 Π u , v'=0) and N 2+ (B 2 Σ +u , v'=0) states and rates of their quenching by molecules of N 2 , O 2 , H 2 , CO and H 2 O have been determined by emission spectroscopy. To excite the states involved a nanosecond pulse repetitive high-voltage discharge was used.
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