Author: Paolo Fessia (CERN)
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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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Report from the TCC
The HL-LHC Technical Coordination Committee has continued its work for the follow-up and evolution of the technical baseline of the project in a fully remote format. While the current restrictions still prohibit in-person meetings, the remote format has been allowed more active participation from all collaborators, which is an important asset for the current project…
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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…