Tag: WP15 Integration and (De-)Installation
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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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Long Shutdown 3 incoming: installations already heating up in the HiLumi LHC galleries
Since the summer of 2025 installations in the new High-Luminosity (HiLumi) LHC surface buildings and underground galleries at Points 1 and 5, and preparations for de-installation and installation works in Long Shutdown 3 (LS3), have been progressing at a high pace. On the surface, the installation of the cooling and ventilation systems in the SU…
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Optimising HL-LHC activities for the LS3 schedule
The LS3 LHC schedule, including the HL-LHC activities, was presented at the LS3 Readiness Review on 11-13thSeptember 2024. Following this review, a significant update was announced: LS3 will commence in the LHC on 29thJune 2026. By then, the critical path duration for the LS3 LHC in-work schedule was 51.5 months. Thanks to an intense optimisation…
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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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DFX review and design modifications
On the 31st January 2019 (with a 2nd final session on the 12th February), a DFX Conceptual Design Review was held at CERN. The DFX (Distribution Feed Box) is a key element of the cryogenic powering line for the new magnets of the LHC interaction regions at IP1 and IP5. This powering line, the so-called…
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New Crab Cavity positions and cryogenic shuffling module design
In the Optics 1.5 the crab position in the layout has been reviewed in order to take into account the design constraints of the cryogenic distribution line (QXL). In addition, the new approach guarantees the accessibility of the QXL equipment (valves and instrumentation) and provides an identical cryogenic layout able to receive both RFD and…
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Highlights from the HL-LHC Work Packages
WP2: Performance and Beam Dynamics During a measurement campaign in 2017 at the LHC, it was clearly demonstrated for the first time the beam lifetime improvement due to a compensation of the beam-beam long range effects, using DC current baring wires. The measurements and design studies are continuing during 2018 for further refining of the…
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Highlights from the HL-LHC Work Packages
WP2: Performance and Beam Dynamics Following the project re-baselining in summer 2016, the layout and optics of the high luminosity insertion regions were reviewed and the performance re-evaluated. This has led to a small but visible reduction in performance, reducing the margins available for the achievement of the nominal and ultimate luminosity targets. Optimization of…