Publication at Faculty of Mathematics and Physics |
2011
Abstract
New flowing afterglow apparatus, Cryo-FALP, was built to study ternary Collisional-Radiative Recombination (CRR) of Ar+ ions with electrons in He/Ar afterglow plasma at temperatures 40-200 K. The obtained ternary recombination rate coefficient at 57 K is K_(CRR) = (3 +- 1) x 10^(-17) cm^(6) s^(-1).
It is the first time that the K_(CRR) was measured below 77 K. The measured temperature dependence K_(CRR) ~ T^(-4.5 +- 0.4) is in a good agreement with theoretical prediction.