This paper presents the measured values of the total dissociative recombination coefficient of molecular Ar + 2 ions with electrons α(Ar + 2 ) as a function of both electron and gas temperatures. The measured recombination coefficient can be expressed as α Ar + 2 (T e , T gas ) = (8.1 ± 0.5) × 10 −7 (T e /300 K) −0.64 (T gas /300 K) −0.86 cm 3 s −1 in the temperature ranges 300 K T e 10 400 K and 300 K T gas 500 K.
Key words Stationary afterglow plasma, microwave diagnostics of plasma, electron heating with microwaves, dissociative recombination, electron temperature dependence of recombination, molecular argon ions.A dual mode (T M 010 cylindrical cavity/cylindrical waveguide) microwave apparatus is used to study the ion mobility and dissociative recombination of molecular argon ions with electrons in the afterglow period of a d.c. glow discharge as a function of electron temperature when electrons were heated by microwaves up to Te ≤ 10300 K, with T+ = Tgas = 300 K. The electron temperature dependence of the total rate coefficient of dissociative recombination may be represented by α(Arwhich is in very good agreement with most previous experimental results but not with the recent theoretical calculations.
This paper presents the measured values of the total dissociative recombination coefficient of molecular neon ions α (Ne + 2 ) as a function of both electron and gas temperatures. The measured recombination coefficient can be expressed as α Ne + 2 (T e , T g ) = (1.8 ± 0.2) × 10 −7 (T e /300 K) −0.42 (T g /300 K) −0.7 cm 3 s −1 in the temperature ranges 300 K T e 6300 K and 300 K T g 500 K.
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