Speaker
Description
The ATLAS Muon Spectrometer is going through an extensive Phase I upgrade to cope up with the future LHC runs of high luminosity of up to 7.5×10$^{34}$ cm$^{-2}$s$^{-1}$. The innermost and first station of the Muon end cap system, the Small Wheel, will be replaced by the New Small Wheel, which has high trigger and precision tracking capabilities. This is achieved by a combination of two detector technologies, Small-Strip Thin Gas Chamber (sTGC) and Micro Mesh Gaseous structures (MM). MM is used for the precision tracking and sTGC is used as a primary trigger detector because of its timing resolution (drift time of most electrons shorter than one bunch crossing period (25 ns) and the front-end ASICs (Application Specific Integrated Circuit), VMMs, can make measurement with precision of 2 ns along with the amplitude measurement). We are working extensively on the integration and commissioning of the front-end electronics for the sTGC chambers. Considering the complexity of the system we are dealing with, we are working to resolve many challenges to test large number of physical channels (~354K) and ASICs (more than 11K) with three different types – pads, strips and wires. We will present our experiences with the trigger and the readout performance studies of the electronics.
