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New Cryo-FALP Experiment to Study Collisional Radiative Recombination of Ar+ Ions at 40-200 K

Publikace na Matematicko-fyzikální fakulta |
2011

Tento text není v aktuálním jazyce dostupný. Zobrazuje se verze "en".Abstrakt

Novel flowing afterglow apparatus (Cryo-FALP) for studying elementary processes in plasma in the temperature range 40-200 K was designed and built. Presented is study of Collisional Radiative Recombination (CRR) of Ar+ ions with electrons in helium-buffered afterglow at electron densities 108-1010 cm-3 and at temperatures 50-200 K.

The obtained ternary recombination rate coefficient KCRR(77 K) = = (1.2 +- 0.6) x 10-17 cm6s-1. The observed temperature dependence agrees well with theoretical T -4.5 prediction.

It is the first time the KCRR was measured below 77 K.