Speaker
Description
In preparation for High Luminosity (HL) LHC operation from 2030, a dedicated injector reliability run was undertaken in 2025 in the LHC injectors to evaluate the beam stability and reproducibility following the upgrade of the LHC injectors. The objective of this campaign was to demonstrate the capability of Linac4, PSB, PS, and SPS to deliver beams for the HL-LHC in a stable and reproducible manner with minimal downtime and specialist intervention, while defining clear performance metrics, verifying the performance of the available automatic beam optimisers, and identifying any issues arising during routine high-intensity operation.
Extensive preparation was required across the injectors, including the deployment of new monitoring tools and coordinated operational procedures. This contribution presents an overview of the reliability run objectives and schedule, the required preparation work carried out in the LHC injectors, and the results obtained in each accelerator.
The lessons learned and operational improvements identified provide valuable input for future high-intensity operation and help validate the readiness of the LHC injector complex for the HL-LHC era.
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