STGC ASSEMBLING AND TESTING IN CHILE FOR THE ATLAS MUON SPECTROMETER

The forthcoming luminosity upgrade of LHC will increase the expected background rate in the forward region of the ATLAS Muon Spectrometer. The most important upgrade project for the ATLAS is the replacement of the present Small Wheel by the so-called New Small Wheel (NSW). The NSW will be installed during the LHC long shutdown in 2019/2020. A small-strip Thin Gap Chamber (sTGC) was developed to provide fast trigger and high precision muon tracking under high luminosity LHC condition. Construction of sTGC modules is performed by five countries: Canada, Chile, China, Israel, and Russia. Construction of sTGC wedges is performed at CERN in a collaborative effort. Production in Chile is presented here including testing results as well as first wedge construction.