The CYGNO collaboration is developing a gaseous time projection chamber
with optical readout of a triple-GEM stack for directional dark matter
searches. While this technique provides detailed reconstruction of event
topology, it requires operation at high gain of the amplification stage,
where nonlinearities in the GEM response become significant. We present
a model developed to describe...
Abstract:This work introduces Markov modelling to describe how resistive plate chambers (RPC) deteriorate under uniform background irradiation. The model works for high irradiation rates and arbitrary charge spectra. Applied to M. Abbrescia’s single-cell RPC model (RC circuit), it agrees with Monte Carlo simulations and can also describe RPCs with polarizable resistive layers and in two...
