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Cyclotron News

CERN Accelerator
  • November 27, 2025Another year of outstanding accelerator complex performance
    Another year of outstanding accelerator complex performance Another fantastic year of LHC proton–proton operation came to an end on 18 November, with 125 fb⁻¹ delivered to both ATLAS and CMS, 12.5 fb⁻¹ to LHCb and a smidgeon to ALICE in line with the …
  • November 27, 2025Accelerator Report: The final countdown
    Accelerator Report: The final countdown Although the LHC, the SPS North Area and part of the PS East Area have transitioned to lead-ion operation, proton and antiproton beams remain essential for several facilities, including ISOLDE, n_TOF, part of t …
  • November 25, 2025HIE-ISOLDE: 10 years, 10 highlights
    HIE-ISOLDE: 10 years, 10 highlights The HIE-ISOLDE accelerator in 2016. (Image: CERN) The Isotope Separator On-Line facility (ISOLDE) directs a proton beam from the Proton Synchrotron Booster (PSB) onto specially developed thick targets, producing lo …
  • November 17, 2025Novel beam sensors built to last
    Novel beam sensors built to last A slender glass fibre no thicker than a human hair placed across a particle beam could improve accelerator monitoring. A team is testing the use of hollow-core optical fibres to measure the profile and position of the …
  • November 12, 2025Accelerator Report: 2025 is another record-breaking year for protons in the LHC
    Accelerator Report: 2025 is another record-breaking year for protons in the LHC On 4 November at 10.20 p.m. the LHC Engineer in Charge dumped the last proton fill of 2025, which brought the integrated luminosity for ATLAS and CMS up to 125.4 fb⁻¹, ex …
  • November 10, 2025CERN Council reviews feasibility study for a next-generation collider
    CERN Council reviews feasibility study for a next-generation collider Particle colliders are unique instruments that allow the smallest constituents of matter and the laws of the universe to be studied at the most fundamental level. CERN and its part …
  • October 29, 2025Accelerator Report: When plans meet reality…
    Accelerator Report: When plans meet reality… With 100 fb⁻¹ delivered to both ATLAS and CMS, the LHC Machine Committee (LMC) had given the green light to gradually increase the bunch intensity from 1.63×10¹¹ protons per bunch to 1.7×10¹¹, with a possi …
  • October 17, 2025La chaîne des accélérateurs se prépare à la haute luminosité
    The accelerator chain prepares for high luminosity Intensity is rising in the Large Hadron Collider (LHC): last week, the accelerator propelled particle bunches containing more than 230 billion protons (2.3 x 1011): 40% more than standard bunches. As …
  • October 16, 2025Accelerator Report: We reached 100!
    Accelerator Report: We reached 100! In the morning of 6 October, just a few hours before the start of the four-day machine development (MD) block, the LHC beams were dumped after a minor instability in the cryogenic system at Point 2. Fortunately, th …
  • October 16, 2025Leadership handover at HL-LHC
    Leadership handover at HL-LHC The meeting of the High-Luminosity LHC collaboration at the beginning of October saw the baton passed to a new project leader. Oliver Brüning, who has led the HL-LHC project since 2020, will become CERN’s new Director fo …
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