Uploaded November 2021 | Updated September 2026, 12 minutes ago
At 1pm today, November 4 2021, the second and final New Small Wheel detector was lowered into the ATLAS experiment cavern. Experience the full descent in this real-time coverage of the operation.
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The ATLAS Experiment at CERN welcomed a brand-new detector: the Muon New Small Wheel system. Its successful installation follows nearly a decade of design and construction, and marks a major milestone in ATLAS’ high-luminosity era.
The High-Luminosity upgrade of the Large Hadron Collider (HL-LHC) will dramatically increase the rate of collisions in the ATLAS experiment. While an opportunity for physicists to explore some of the rarest processes in the Universe, the large collision rate brings new challenges – in particular, higher radiation levels and significantly more data. The ATLAS Collaboration is adapting its experiment to deal with these challenges, upgrading all parts of its detectors with new, state-of-the-art instruments.
The Muon New Small Wheels are the first new detectors in ATLAS specifically designed to handle high luminosity conditions. This installation of the second – and final – NSW follows nearly a decade of dedicated efforts from ATLAS members, who designed, constructed and assembled this high-tech muon detector from scratch. These new detectors will significantly expand the ATLAS experiment’s capabilities, readying us for the exciting high luminosities to come.
Learn more about the New Small Wheel detectors: https://atlas.cern/updates/news/NSW-complete
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Follow the ATLAS Experiment:
Twitter: twitter.com/ATLASexperiment
Facebook: facebook.com/ATLASexperiment
Instagram: instagram.com/ATLASExperiment
At 1pm today, November 4 2021, the second and final New Small Wheel detector was lowered into the ATLAS experiment cavern. Experience the full descent in this real-time coverage of the operation.
---
The ATLAS Experiment at CERN welcomed a brand-new detector: the Muon New Small Wheel system. Its successful installation follows nearly a decade of design and construction, and marks a major milestone in ATLAS’ high-luminosity era.
The High-Luminosity upgrade of the Large Hadron Collider (HL-LHC) will dramatically increase the rate of collisions in the ATLAS experiment. While an opportunity for physicists to explore some of the rarest processes in the Universe, the large collision rate brings new challenges – in particular, higher radiation levels and significantly more data. The ATLAS Collaboration is adapting its experiment to deal with these challenges, upgrading all parts of its detectors with new, state-of-the-art instruments.
The Muon New Small Wheels are the first new detectors in ATLAS specifically designed to handle high luminosity conditions. This installation of the second – and final – NSW follows nearly a decade of dedicated efforts from ATLAS members, who designed, constructed and assembled this high-tech muon detector from scratch. These new detectors will significantly expand the ATLAS experiment’s capabilities, readying us for the exciting high luminosities to come.
Learn more about the New Small Wheel detectors: https://atlas.cern/updates/news/NSW-complete
---
Follow the ATLAS Experiment:
Twitter: twitter.com/ATLASexperiment
Facebook: facebook.com/ATLASexperiment
Instagram: instagram.com/ATLASExperiment
