CERN Accelerating science

New Small Wheel

The ATLAS New Small Wheel - Triggering on muons and rejecting fakes

The New Small Wheel (NSW) [1] has been the largest Phase-1 upgrade project of ATLAS. The two innermost stations of the Endcap Muon spectrometer have been replaced with two newly built detector systems based on small-strip Thin Gap Chambers (sTGC)…

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ATLAS New Small Wheel upgrade advances

The ATLAS New Small Wheel (NSW) upgrade is an ambitious project that will allow exploiting the physics opportunities of the HL-LHC. Last November, the second -and final- NSW was installed in the ATLAS detector, marking the successful outcome of…

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ATLAS New Small Wheel upgrade advances

Group photo after the installation of the last sector of NSW-A. On the right is NSW-C with the first three sectors installed at the time. The New Small Wheel (NSW) upgrade is an ambitious project that aims to allow, along with other upgrade projects…

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ATLAS NSW Upgrade: preparing installation and commission of its first sector

The New Small Wheel (NSW) Upgrade it the most complex and challenging Phase-1 Upgrade project of ATLAS. As all the other upgrade projects for the LHC experiments, the goal is to meet the challenges of the High-Luminosity LHC era and to cope with the…

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