In high pressure, He glows discharges and the 3-body reactions of He (23 S) metastable atoms and He+ ions with He and N2 are in competition to excite the \(N_2^+\) (B,0) radiative states. With [He+] < 1010 cm-3 and [He (23 S)] ~ 1012 cm 3 as found in a DC glow discharge, it is estimated that the 3-body reaction He(23 S) + He + N2 was the dominant process. By using the actinometry method with Ar and Ne impurity in N2 - H2DC glow discharge at 5 Torr, it was found in the negative glow of the DC discharge a small increase of all N2 vibrational states and cathode temperatures as a few H2 was introduced into N2. Finally, it discusses the methods to obtain the plasma gas temperatures from the rotational structures of N2, CN, OH, H2 and O2 radiative states.
Author
(s) Details
André
Ricard
LAPLACE, Université de Toulouse, CNRS, INPT, UPS, 118 Route de
Narbonne, 31062 Toulouse Cedex 9, France.
Jayr
Amorim
Department Fisica, Inst. Tec. Aeronautica 12228-900, Sao Jose dos
Campos, Brazil.
Michel
Touzeau
LPGP, Université de Paris-Saclay, 91405 Orsay, France.
Please see the book here:- https://doi.org/10.9734/bpi/mono/978-93-49473-93-5/CH2
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