Quality Control and Statistical Analysis of the MICROMEGAS Readout Boards

The construction of large area Micromegas detectors for the New Small Wheel (NSW) upgrade of the ATLAS experiment have started since 2018. The main detector components, the resistive anode boards, are produced in industry and undergo a thorough evaluation at CERN following a detailed Quality Assurance and Quality Control (QA/QC) procedure. Up to today, more than 2000 Micromegas anode boards have been produced and checked for their quality. For a better understanding of the detector behaviour, a statistical analysis of the measurements qualifying the anode boards was performed and the results are shown in this report.