TY - JOUR TI - The ATLAS muon micromegas R&D project: Towards large-size chambers for the s-LHC AU - Alexopoulos, T. AU - Altintas, A. AU - Alviggi, M. AU - Arik, M. AU - Cetin, A. AU - Chernyatine, V. AU - Cheu, E. AU - Della Volpe, D. AU - Dris, M. AU - Fassouliotis, D. AU - Gazis, N. AU - Giordano, R. AU - Gratchev, V. AU - Guan, L. AU - Iengo, P. AU - Ioannou, P. AU - Li, C. AU - Johns, K. AU - Kaushik, V. AU - Khodinov, A. AU - Kourkoumelis, C. AU - Maltezos, S. AU - Mermigka, K. AU - Müller, H. AU - Nikolopoulos, K. AU - Park, W. AU - Persembe, S. AU - Petridou, C. AU - Petti, R. AU - Polychronakos, V. AU - Purohit, V. AU - Sampsonidis, D. AU - Sekhniaidze, G. AU - Shao, M. AU - Sun, J. AU - Tsipolitis, G. AU - Veenhof, R. AU - Wang, L. AU - Wotschack, J. AU - Wu, X. AU - Zhao, T. AU - Zhao, G. JO - Journal of Instrumentation PY - 2009 VL - 4 TODO - 12 SP - null PB - SN - 1748-0221 TODO - 10.1088/1748-0221/4/12/P12015 TODO - ATLAS Muon spectrometer; Baseline systems; Gaseous detectors; Industrial production; Mechanical robustness; Micro pattern; Position resolution; Trigger detetectors, Gas detectors; Specifications, Spectrometers TODO - Detectors based on the bulk-Micromegas technology exhibit position resolution better than 100 μm at counting rates of up to several tens of kHz/cm2, along with trigger capabilities. These characteristics, combined with the detector's mechanical robustness and the possibility for cost-effective industrial production, makes them a promising candidate for the ATLAS Muon Spectrometer upgrade in a future luminosity enhancement of the LHC. The R&D project status will be presented together with the obtained results in the effort to define the baseline system specifications. © 2009 IOP Publishing Ltd and SISSA. ER -