Characterization of new eco friendly gas mixtures based on HFO for RPCs

Abstract

The Resistive Plate Chambers standard mixture, mainly based on C2H2F4, has a high Global Warming Potential (GWP) and therefore the search for RPC eco friendly gases is mandatory. In fact if some additional restrictions on greenhouse gas emissions will be imposed or if this gas becomes too expensive due to a reduction on the industrial demand, it will be impossible to use it anymore. The main problem is that the detector already installed in the experiments can not work properly with the eco-friendly gases already studied and for this reason the search for a suitable eco-friendly gas mixture is crucial. In this work we present the results on the detector performance in terms of efficiency, prompt and ionic charge, with different gas mixtures.