Quality assurance of LHC cryogenic instrumentation during installation and commissioning

摘要

The operation and monitoring of the LHC requires a cryogenic instrumentationsystem of an unprecedented size (800 instrumentation crates, holding 15000sensors and actuators), with strict constraints on temperature measurementuncertainty and radiation hardness for all sensors and actuators. This paperpresents the applied procedures of quality assurance and the specific hard- &software tools used to meet and track the mentioned requirements during itslifetime (fabrication, installation, commissioning, operation and maintenance);within the given constraints of time schedule, accessibility and coordination withother teams.