Performance and Calibration of 2m^2 Micromegas Detectors for the ATLAS Muon Spectrometer Upgrade

The steadily increasing luminosity of LHC requires an upgrade to high rate and high resolution capable detector technology for the inner end cap of the muon spectrometer of the ATLAS experiment. For precision tracking 4 types of 2 and 3 m^2 large micromegas quadruplets will provide 8 consecutive active layers, each with 100$\mu$m spatial resolution per individual plane. 120 GeV SPS muon and pion data from Aug. 2017, taken with the first in Germany built SM2 2 m^2 quadruplets,show spatial resolutions of 80 $\mu$m for perpendicular particle incident using charge weighted position reconstruction. A time projection chamber like analysis gives similar resolution for inclined tracks. The full active area of SM2 quadruplets has been calibrated in the Munich Cosmic Ray Facility. A segmentation of the active area into smaller partitions enabled for the first series SM2 quadruplets, with all 12288 channels read out, a detailed full area analysis of local detector properties, as geometrical quality, efficiency, pulse height and spatial resolution.