Speaker
Description
CERN operates and maintains several large cryogenic systems with complex architecture necessary for the operation of the Large Hadron Collider (LHC). Continuous operation of the accelerator during Run2, and the implementation of availability calculation tools as well as the use of a fault tracking system on cryogenics equipment, has allowed the CERN cryogenics team to gain valuable experience and data to drive maintenance and consolidations. Major maintenance tasks and a comprehensive consolidation program have been planned during the Long Shutdown 2 based on a data driven approach. In this talk we will review the methodology, approach and main issues addressed to improve reliability of the cryogenic infrastructure aiming at maintaining the cryogenic system availability for the accelerator complex above 98% for the coming years. We will report on the initial operation results achieved and we will also give some perspective on the new time line for cryogenics operation during the extensive Run3 including impact of energy preservation scenarios.
