Speaker
Jaime Perez Espinos
(CERN)
Description
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 provide an overview of the leak testing activities and their status, with focus on the leak/s found at the cold mass circuit, the ongoing activities, and the pending actions. In view of LS3, a series of lessons learnt are also outlined.