Category: News Page
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Beam instrumentation put to the test
Daniele Butti (CERN) Raymond Veness (CERN) Stephen Gibson (Royal Holloway / CERN) Thibaut Lefevre (CERN)Although most of the HL-LHC beam instrumentation work package is well into production and even integration, some of the more innovative designs are also taking advantage of the final beams in Run 3 to test and optimise their performance. In particular, an electro-optical beam position monitor (e-o BPM) and a Beam Gas Curtain (BGC) profile…
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Cold Powering System: confidence and validation for future installations, and series production progress
The HL-LHC Cold Powering Systems transfer the current from the power converters, located in the new underground galleries, to the superconducting magnets of the HL-LHC Inner Triplets and Matching Sections, in the LHC tunnel, on either side of Point 1 and Point 5. Eight systems plus two spares of two different types, X for the…
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HL-LHC magnets: progress across the collaborations and at CERN
Since the last newsletter in June 2024, the interaction region (IR) magnets for the HL-LHC have reached several key milestones. One of the most significant achievements was the delivery of all cryo-assemblies to the IT String, including the DCM connection module, marking a major step forward in the integration process. With Work Package 3 now…
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Evolving collaborations: overview of collaboration status going into LS3
International collaborations play a very important role in the HL-LHC Project. The HL-LHC Collaboration Office continues to act as the link between institutes, work packages and CERN, and is available to provide support across the project. Series production is today well underway for all existing collaborations. Progress with each of the collaborations is followed by…
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Update of project status
The HL-LHC project has continued to make impressive progress since the annual meeting in Genoa at the end of 2024. In particular I would like to highlight here the celebrations for the first Beam Screen being completed at CERN, the successful repair of the prototype RFD Crab Cavity cryo-module and its on-time installation in the…
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Planning of the 2024 Annual Meeting and Cost & Schedule Review
Our annual HiLumi Cost & Schedule Review (CSR) will take place between the 11th and 14th November. After another lively procurement year, where commitments are expected to reach 74% of the budget at completion by the end of the year, we need to consolidate the status of the full project for what might be the…
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The challenges of magnet sorting for the HL-LHC
Magnet sorting is a challenging process that aims at improving the performance of a particle accelerator by the clever choice of the position of the magnets to induce a natural compensation of the field errors that are inevitable in modern superconducting magnets. These studies are intrinsically multi-faceted and an appropriate figure of merit should be…
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Long Shutdown 3 schedule and readiness review
The HL-LHC Project will culminate with the accomplishment of a very demanding installation phase during the Long Shutdown 3 (LS3). To assess the project’s readiness, a tracking process on the expected availability of equipment has been implemented. The careful follow-up of this installation schedule float plays an important role in the strategical decision-making process. It…
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Status of SM18 test benches for SC magnets and SC-link, and test plan for 2024
Test bench requirements for the HL-LHC In the last years, the horizontal test benches have been modified to accommodate the HL-LHC magnet and SC-link test program. The number of HL-LHC magnet cryoassemblies to be validated (24 magnets + 8 SC-links + spares) is much lower than for the LHC, but there are more variations in…
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IT String – results from SQXL commissioning and SCT, and preparations for installation of the cold powering system
Davide Bozzini (CERN) Marta Bajko (CERN) Nicolás Heredia García (CERN) Samer Yammine (CERN) Sebastien Blanchard (CERN)The operation of the IT String represents a significant milestone for the HL-LHC Project as it is where many state-of-the-art technologies developed for the HL-LHC will operate collectively for the first time. The installation and commissioning of this unique test stand have seen relevant achievements in recent months. Cryogenic system tests The IT String cryogenic…









