Author: Apollonio, A.
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TUPMB040 LHC Accelerator Fault Tracker - First Experience 1190
  • A. Apollonio, L. Ponce, C. Roderick, R. Schmidt, B. Todd, D. Wollmann
    CERN, Geneva, Switzerland
  Availability is one of the key performance indicators of LHC operation, being directly correlated with integrated luminosity production. An effective tool for availability tracking is a necessity to ensure a coherent capture of fault information and relevant dependencies on operational modes and beam parameters. At the beginning of LHC Run 2 in 2015, the Accelerator Fault Tracking (AFT) tool was deployed at CERN to track faults or events affecting LHC operation. Information derived from the AFT is crucial for the identification of areas to improve LHC availability, and hence LHC physics production. For the 2015 run, the AFT has been used by members of the CERN Availability Working Group, LHC Machine coordinators and equipment owners to identify the main contributors to downtime and to understand the evolution of LHC availability throughout the year. In this paper the 2015 experience with the AFT for availability tracking is summarised and an overview of the first results as well as an outlook to future developments is given.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB040  
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THPOY030 Dependability Studies for CERN PS Booster RF System Upgrade 4159
  • O. Rey Orozko, A. Apollonio, M. Jonker, M.M. Paoluzzi
    CERN, Geneva, Switzerland
  Radio frequency systems are a vital part of almost all accelerators. The request for a higher beam bright-ness from the injector chain of CERN's Large Hardon Collider, as demanded by the future High-Luminosity program, has motivated, among many other upgrades, the construction of new RF equipment in the PS Boost-er. Because availability and reliability have an im-portant impact on the luminosity production in a col-lider environment, dependability studies have been performed on the new design of the RF system assum-ing different maintenance strategies. This paper will present the model, made with the commercial software Isograph, for dependability studies. In addition, a comparative study will be presented between the re-sults obtained from Isograph and from an analytical analysis.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOY030  
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