A flowing afterglow study of the recombination processes occurring in an Ar+ dominated plasma in the temperature range of 72-100 K at He buffer gas pressure of 200-1600 Pa is presented. The results were obtained by Langmuir probe diagnostics using flowing afterglow apparatus.
Measured electron density decay curves are compared to chemical kinetics calculations. The obtained ternary helium assisted recombination rate coefficients are in agreement with theoretical predictions.