Tag: WP4 Crab Cavities and RF
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Transition to deployment phase approaching: update on project status
Impressive progress has been made across the entire collaboration, with production progress vital as we continue to progress towards deployment in the LHC tunnel. The upcoming Collaboration Meeting will be an exciting time to meet just after the start of deinstallation of the machine, to reflect on what we have achieved so far and what…
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Crab cavity and RF developments across collaborations
Bob Laxdal (TRIUMF) Gino Cipolla (CERN) Leonardo Ristori (Fermilab) Niklas Templeton (STFC) Nuria Valverde Alonso (CERN) Rama Calaga (CERN) Teddy Capelli (CERN)Strides are being taken for the RFD and DQW crab cavities and cryomodules, with challenges being tackled and overcome across the collaborations, and more deliveries to CERN imminent. Important progress has also been made for the high-power RF components. RF Dipole Cryomodule for SPS Tests (CERN) The Radio Frequency Dipole (RFD) cryomodule in the SPS…
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LHC High-Intensity Tests paving the way for HiLumi LHC
Benoît Salvant (CERN) Birk Karlsen-Baeck (CERN) Carlo Zannini (CERN) Chiara Antuono (CERN) Helga Timko (CERN) Ivan Karpov (CERN) Jorg Wenninger (CERN) Max Topp-Mugglestone (John Adams Institute) Nicolas Mounet (CERN) Rama Calaga (CERN) Roderik Bruce (CERN) Rogelio Tomás (CERN) Sofia Kostoglou (CERN) Stefano Redaelli (CERN) Xavier Buffat (CERN)During the two days dedicated to LHC high-intensity tests, the accelerator successfully operated with an unprecedented number of high-intensity bunches and provided encouraging results and valuable lessons ahead of the main high-intensity test campaign planned in late-June. Preparatory tests for the LHC high-intensity (HI) period, carried out on 4th to 6th May 2026 marked an important milestone…
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Mid-term planning for testing of components in SM18
The SM18 test facility continues to play a central role in validating critical components for the HL-LHC Project. Currently all upgrades of the various test stations have been completed, including a second cold box providing helium for the IT String, a large update campaign for magnet test benches, new instrumentation hardware with quench antenna and…
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HL-LHC Crab Cavity Cryomodules – UK Collaboration Status
The first LHC crab cavity cryomodule build with the two qualified cavities from CERN is progressing well at Daresbury Laboratory. The DQW cryomodule is the first of four series cryomodules being built by the UK collaboration, following the RFD-SPS delivery, with a fifth DQW cryomodule to be built by CERN. Since the RFD build, the…
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Progress of the in-kind contribution from the USA for series production and testing of radio-frequency dipole (RFD) cavities for the HL-LHC
The series production of bare and jacketed Radio-Frequency Dipole (RFD) cavities is progressing steadily at Zanon Research & Innovation Srl (ZRI) within the framework of the HL-LHC Accelerator Upgrade Project (AUP), coordinated by Fermilab. Manufacturing is proceeding at full capacity with multiple production activities – including cavity fabrication, chemical processing, and cleanroom assembly – executed…
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DQW Series Production Status – CERN & Research Instruments (RI)
The series DQW cavities manufactured at RI (eight cavities) and CERN (two cavities) have progressed significantly over the period of 2024-25. Two cavities, one from RI and one from CERN, were fully qualified with higher order mode (HOM) couplers in their final state well beyond the specification (4.7 MV) and sent to UK-STFC for cryostating…
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RF Dipole Cryomodule for SPS Tests (CERN & UK)
The RF dipole prototype cryomodule foreseen for tests with beam in the SPS tests was successfully repaired and commissioned in the SM18 facility at CERN in 2024. During the year-end technical stop (YETS) 2024-25, the cryomodule was installed in the SPS-LSS6 bypass dedicated to the crab cavity tests in the SPS. Immediately after the installation,…
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Prototype RFD cavity tests at TRIUMF: Status and progress with TCM0 and preparation for TCM1 activities
Major expenditures have been completed in time to spend the allocated funds and procure all components required for the cryostating activities of the 5 series RFD cryomodules. In February 2025, TRIUMF received a prototype RFD cavity (TCM0) from AUP after it had been tested at JLab with both warm and cold characterisations. The cavity passed…
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Status of the series HL-LHC DQW cryostating & infrastructure preparations
Two series dressed DQW cavities have been qualified at CERN and are being prepared for shipment to STFC in the UK for string assembly. Meanwhile, since the completion of the RFD SPS cryomodule in October 2023, the UK team at Daresbury Laboratory have been preparing for the series DQW cryomodules; upgrading infrastructure, updating assembly tooling,…









