We are preparing the schedule for vacuum control activities at the ISOLDE complex during LS3. The main activity will be the consolidation of the PLCs at ISOLDE and REX, which will be carried out by my colleague Iker (in Cc). Since ISOLDE will not be operating during 2026, we would like to begin in March, taking advantage of the fact that all other machines will remain operational and, therefore, we will have more personnel and availability. During the consolidation (which will last approximately four months and end at the end of June 2026), the control system will be unavailable, and the sectors will remain under static vacuum. Based on this, do you have any activities planned during this period that might require the vacuum system to be available (e.g., balloon emptying)?

This is only a preliminary proposal. Once we receive your feedback and that of the vacuum operations team, we will provide you with a detailed schedule.

- High-level targets for the CERN Injectors 2025 (https://edms.cern.ch/ui/file/3349634/0.1/ACC-OP-EN-0002-00-10.pdf)