ATLAS NSW Micromegas readout boards: Industrialisation and Quality Control and Quality Assurance

Micromegas with a spark protection scheme were selected as instrumentation of the first forward muon station in the upgrade of the ATLAS detector for the operation of the Large Hadron Collider at high luminosity. The anode boards carrying the readout strips, the resistive protection scheme and the mesh distance holders (pillars) are industrially produced in Europe. A detailed quality control and quality assurance scheme has been developed and implemented at CERN to closely follow the industrial production. Up to today, about 2000 anode boards have been checked for their quality in a dedicated test facility at CERN. The detailed procedure, highlighting the crucial aspects leading to the rejection or acceptance of an anode board, as well as the statistical overview of the results will be presented.