This introductory talk will introduce the scope of todays 5th IT String day in light of the recent findings. The talk will also recap and reference the follow-ups done based on the recommendations of last years event, which was focused on achieving the completion of the IT String installation and prepare it for operation by the end of 2025.
In this presentation, we provide a summary of the installation of the cryomagnets for the IT string, along with the main lessons learnt. Special focus is placed on extracting the most important information relevant to the inner triplet installation during Long Shutdown 3 (LS3).
We begin with a brief introduction to the magnet system and its interconnections. The initial installation plan is...
This presentation introduces the IT string insulation vacuum system and summarizes the status of the leak detection and tightness validation programs. After a brief reference to the vacuum equipment layout, we provide details about the vacuum equipment configuration during the commissioning phase, linking it to the recommendations and comments received during the IT string day IV. Then we...
The Cold Powering System of the ITS String was installed on the IT String 2024 – 2025. This presentation covers:
-
Overview of the Cold Powering System
-
Status of the Cold Powering System
-
Activities since String Day IV
-
Open points
The presentation will address the following topics:
- FRAS installation activities.
- FRAS commissioning
The presentation will cover the FRAS installation activities on the magnet line as well as the infrastructure for acquisition, control systems and quality. Key lessons learnt will be presented. FRAS commissioning activities and results will be presented. First lesson learnt will...
The cryogenic system of the HL-LHC IT String was successfully commissioned in 2023-2024 in a standalone mode (without magnets and SC-link). In 2024-2025 the cryogenic system was prepared for the commissioning and operation of the HL-LHC IT String including all its components. This presentation covers:
-
Follow-up on the comments from String Day IV
-
Status of the cryogenic system
-...
This presentation will give an overview of the status of the installation and testing of protection equipment in the IT String and its controls integration. Furthermore, the foreseen tests at before and after cool-down will be addressed.
The status of the control systems and their interfaces is presented with a particular focus on the software layers essential for the powering and magnet protection tests during the IT String validation program. Ensuring integration of the new HL-LHC device types and their operational readiness requires close collaboration between development teams, equipment owners and the IT String operation...
This presentation will introduce the role of the Analysis Software within the HL-LHC IT String Validation Program. The talk will highlight how this software is used to process and interpret data from the Hardware Commissioning (HWC) powering tests, which are essential to verify both the powering and protection systems of the new HL-LHC magnet circuits, as well as the overall circuit...
The presentation will address the following topics:
- Performance of the Prototype Cold Powering system
- Completed installation activities and lessons learnt
- Upcoming activities and interfaces
The presentation will address the following topics:
- Status of the collaboration, (procedures, equipment, software...)
- Feedback of the experience of ElQA in the individual magnets and ScLink
- Plan and procedures for the IT String activities
