Tag: Cryogenics
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Efficiency meets environmental responsibility: commissioning CERN’s primary CO₂ cooling circuit
The ATLAS and CMS detectors require ultra-low, stable temperatures to protect their sensitive electronics. Traditional cooling systems rely on synthetic refrigerants like hydrofluorocarbons (HFCs), which, while effective, have a global warming potential thousands of times greater than CO₂. Seeking a sustainable alternative, CERN has turned to CO₂ itself – a natural refrigerant with a far
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HiLumi LHC: cryogenics equipment arrives underground
Two cold boxes have been transported down into the service tunnels of the future accelerator
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Heating homes with the world’s largest particle accelerator
Now operational, a new heat exchange system is reusing hot water from part of the Large Hadron Collider’s cooling system to heat homes and businesses in the local area
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A cryogenic winter for tomorrow’s accelerator
The first large refrigerators for the High-Luminosity LHC have been installed
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HiLumi News: the cold sets in
The delivery of two huge compressors kicks off the installation of the new helium refrigerators for the High-Luminosity LHC
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Accelerator Report: The LHC wraps up its first 2025 physics block
The proton physics run has now been paused for the first block of machine development studies, a technical stop and short oxygen- and neon-ion physics runs. Protons will be back in the machines on 12 July
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Accelerator Report: Target reached, but compressor off
On 23 September, the LHC reached its 2024 target for integrated luminosity. And then a cryogenic station broke down…
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Accelerator Report: Navigating hot summer days and thunderstorms
The summer is often a very productive period for physics in CERN’s accelerator complex, that is, when the weather remains reasonable…
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HiLumi News: new large helium tanks
Four large helium tanks will supply the new High-Luminosity LHC refrigerators
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Accelerator Report: No summer holidays for the accelerator complex
CERN’s accelerators show very good availability rates: beams are in place