Abstract
Micro-pattern gaseous detectors (MPGDs) are a promising readout technology for hardonic calorimeters (HCAL) thanks to their good spatial resolution, longevity and rate capability. We describe the development of a HCAL based on MPGDs for an experiment at the proposed Muon Collider. The design of a semi-digital MPGD-HCAL is shown and its performance is calculated with Monte Carlo simulations with high-energy pions, showing an energy resolution down to 8% for 80GeV pions. We also present the performance of twelve MPGD prototypes with different technologies (MicroMegas, μ-RWELL and RPWELL) assembled and operated in test beam first with high-energy muons and later with pions in a hadronic calorimeter prototype of ∼1λI length; the detectors have a good response uniformity (lower than 17%) and spatial resolution and their performance in the calorimeter shows very good agreement with the Monte Carlo shower calculation.
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