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The accelerator chain prepares for high luminosity

The accelerators that feed into the Large Hadron Collider are ready to supply more intense beams

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Accelerators
17 October, 2025
Accelerators
News
17 October, 2025

Accelerator Report: We reached 100!

On 6 October, the total integrated luminosity passed the symbolic mark of 100 fb⁻¹, exceeding the forecast curve. This allowed the bunch intensity to be increased to explore the intensity reach and limitations in view of the HL-LHC era

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Accelerators
17 October, 2025
Accelerators
News
17 October, 2025

Leadership handover at HL-LHC

Oliver Brüning, who has led the HL-LHC project since 2020, is handing the position of HL-LHC project leader over to Markus Zerlauth

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Accelerators
16 October, 2025
Accelerators
News
16 October, 2025

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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Accelerators
16 October, 2025
Accelerators
News
16 October, 2025

Accelerator Report: LHC performance stays on track and is cruising towards the target

As the 2025 LHC run enters its final ten weeks, strong performance pushes luminosity past 90 inverse femtobarns, while lead-ion preparations are ahead of schedule

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Accelerators
03 October, 2025
Accelerators
News
03 October, 2025

Accelerator Report: Good performance for some, swift recovery for others

The LHC pre-injectors delivered excellent availability throughout recent weeks, while an SPS electrical fault and an LHC collimator vacuum leak have been overcome, allowing a successful return to full luminosity production

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Accelerators
22 September, 2025
Accelerators
News
22 September, 2025

CERN accelerates medical applications

Five-year extensions to CERN’s CLEAR and MEDICIS platforms will boost the impact of cutting-edge accelerator technologies in areas ranging from advanced medical treatments to aerospace electronics

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Accelerators
18 September, 2025
Accelerators
News
18 September, 2025

Accelerator Report: The accelerator complex, between precision repairs and future-facing studies

The past weeks brought a mix of hands-on interventions and forward-looking studies across the CERN accelerator complex, while the LHC continued to catch up with the forecast luminosity curve

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Accelerators
03 September, 2025
Accelerators
News
03 September, 2025

Accelerator Report: A summer of hot spells for the LHC

So far the summer run has seen solid progress in luminosity production, but also some unexpected beam and machine behaviour. Careful monitoring revealed a hardware issue, now being closely watched as the LHC continues to perform at full capacity.

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Accelerators
21 August, 2025
Accelerators
News
21 August, 2025

AWAKE accelerator upgrade gets a head start

Trailblazing plasma wakefield experiment, AWAKE, begins its upgrade one year ahead of the rest of CERN’s accelerator complex

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Accelerators
12 August, 2025
Accelerators
News
12 August, 2025