A comprehensive model of Penning energy transfers in Ar-CO2 mixtures


Sahin Ö., Kowalski T. Z.

JOURNAL OF INSTRUMENTATION, vol.12, 2017 (SCI-Expanded) identifier identifier

Abstract

Ionizing energy transfer mechanisms due to the excited argon atoms, called Penning transfers, have been investigated for various Ar-CO2 mixtures at 0.4, 0.8, 1.2 and 1.8 atm gas pressures. The Penning energy transfer probabilities are extracted from the systematic gas gain measurements carried out in cylindrical proportional counters. In this report, contributions of the several transfer processes are identified by studying the pressure and mixing proportion dependence of the transfer rates with a model.