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Cyclotron News

CERN Accelerator
  • March 26, 2026Accelerator Report: HiLumi LHC beam reliability runs pave the way to the future
    Accelerator Report: HiLumi LHC beam reliability runs pave the way to the future After the major upgrades carried out during Long Shutdown 2 (LS2, 2019–2020), the LHC injector complex entered a new phase of operation. The LHC Injectors Upgrade (LIU) p …
  • March 11, 2026Crystal shadowing to reduce beam losses
    Crystal shadowing to reduce beam losses “If you place a large rock in a flowing stream, you can shelter objects located just downstream. It’s much the same with crystals and a beam of particles,” explains Francesco Velotti, applied physicist in the A …
  • March 11, 2026Accelerator Report: The 2026 run will be short but intense
    Accelerator Report: The 2026 run will be short but intense During the recommissioning phase, the operations teams, together with equipment and machine-protection experts, worked around the clock to bring the Large Hadron Collider (LHC) back into oper …
  • March 6, 2026Final laps at the LHC
    Final laps at the LHC The final laps before the major overhaul: CERN’s accelerator operators have just fired the starting pistol for the last run of the Large Hadron Collider (LHC). At the end of June, four years of work will begin to transform the L …
  • February 25, 2026HiLumi LHC: cryogenics equipment arrives underground
    HiLumi LHC: cryogenics equipment arrives underground The vertiginous descent of equipment into the depths of the accelerator tunnels is always a captivating event. The stars of the show over the last few weeks have been the two gleaming cold boxes th …
  • February 25, 2026Accelerator Report: Protons are heading towards the LHC
    Accelerator Report: Protons are heading towards the LHC Many activities are currently progressing across the accelerator chain as the complex moves steadily towards full operation. In the injectors, beam commissioning is advancing well, with the high …
  • February 23, 2026Knud Dahlerup-Petersen (1951 – 2025)
    Knud Dahlerup-Petersen (1951 – 2025) It was with deep sadness that we learned of the passing of our former colleague Knud Dahlerup-Petersen.  Knud Dahlerup-Petersen was a remarkable engineer, colleague and leader whose career at CERN spanned nearly f …
  • February 20, 2026HiLumi LHC: full-scale tests start
    HiLumi LHC: full-scale tests start CERN has reached a crucial milestone in the advancement of the High-Luminosity Large Hadron Collider (HiLumi LHC) project with the start of the cryogenic cooldown to 1.9 K (‑271.3 °C) of its 95-metre-long test stand …
  • February 11, 2026Accelerator Report: The accelerator complex is gradually waking up from the winter shutdown
    Accelerator Report: The accelerator complex is gradually waking up from the winter shutdown The 2026 Chamonix Workshop took place last week and brought together the accelerator and experimental communities to review the recent operational performance …
  • January 28, 2026Accelerator Report: Run 3 operations counting down to LS3
    Accelerator Report: Run 3 operations counting down to LS3 With accelerator operations for 2025 having ended on 8 December and the Linac4 source restarting already on 5 January, this year’s transition felt particularly short. While there was formally …
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