MAXIMIZING THE EFFICIENCY OF LHC MAINTENANCE DURING OPERATION TIMES USING A MOBILE TOOL
Martel, Delamare, Amerigo, Sharon Mallon, Pater, Petit, Widegren · 2010
The operation of the Large Hadron Collider (LHC) imposes minimum maintenance time, when needed corrections to all systems are to be carried out. Today's maintenance management tools at CERN are seen as too slow and cumbersome for such a challenge. The short duration of the technical stops (72 h/month) requires preparation of jobs advance, and coordination of all involved teams; at the same time, the radio-protection of personnel the LHC underground areas imposes a strict Low As Reasonably Achievable(ALARA) policy for the works' duration. In order to perform a maximum of tasks a short time, a mobile tool for the manipulation of job and equipment data has been created. The ability to signal a new job to a team the field will avoid unnecessary trips to the tunnel; the signalling of a job's completion (and its details) will allow subsequent jobs to start promptly and with more information; finally, the possibility to consult equipment's full manufacturing and installation data in situ will help with the investigation of unforeseen situations. In a 27 km environment with scarce Wi-Fi connectivity, an online light tool is now available, covering the essentials of asset maintenance tasks.