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    Workshop on Machine availability and dependability for post LS1 LHC

    28 November 2013
    CERN
    Europe/Zurich timezone

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    Contribution List

    18 out of 18 displayed
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    1. 15. Welcome address
      Frederick Bordry (CERN)
      28/11/2013, 08:30
    2. 1. Motivation and goals of Workshop
      Dr Benjamin Todd (CERN)
      28/11/2013, 08:40
    3. 2. Dependability calculations prior to 2008 and operational experience during first LHC run
      Dr Jan Uythoven (CERN)
      28/11/2013, 08:50
      This presentation recalls the initial work done by the Reliability Working Group to assess the safety of the LHC machine protection system before its first operation. This study also provided numbers of machine availability for the systems studied. The initial estimate is compared with the LHC fault statistics presented at the different workshops across all systems. The importance of such...
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    4. 3. Cryogenics
      Eric Jean-Francois Duret (CERN), Mr Serge Claudet (CERN)
      28/11/2013, 09:15
      The LHC accelerator being based on superconducting devices, the availability of it’s cryogenic system is crucial for it’s global performance. From the beginning, monitoring our availability has been part of our standard practices, allowing for continuous progress. After briefly describing pre-LS1 facts and tools, we will describe what is being done during LS1 in perspective of restart...
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    5. 14. Power converters
      Slawosz Uznanski (CERN)
      28/11/2013, 09:45
      From the powering side, the biggest risk to LHC availability is the current FGC2 implementation, and its sensitivity to radiation. If we run as we are, we will likely abort almost every mission prematurely due to FGC2 failure. A next generation FGClite is being designed to replace the FGC2 in areas which are exposed to radiation. Of some 1600 Power Converter Controllers installed at CERN...
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    6. 4. LHC Beam dumping system
      Roberto Filippini (Unknown)
      28/11/2013, 10:30
    7. 5. Magnet protection and interlocks
      Stephane Gabourin (CERN)
      28/11/2013, 11:00
    8. 6. Availability of LHC Beam Instrumentation Systems
      Mr Lars Jensen (CERN)
      28/11/2013, 11:30
      The presentation will follow-up from the MPP Workshop in Annecy and cover reliability issues for BI systems at the LHC. Emphasis will be put on the interlocked systems (BLMs and SR6 BPMs) which have a direct impact on the beam permits while a general overview for other critical systems with lessons learn during LHC run #1 will be given.
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    9. 8. RF/Damper
      Pierre Maesen (CERN)
      28/11/2013, 12:00
    10. 9. Operational availability – injector chain
      Karel Cornelis (CERN)
      28/11/2013, 14:00
    11. 10. Operational availability - Optimizing LHC
      Laurette Ponce (CERN)
      28/11/2013, 14:30
    12. 17. LHC Availability Tracking Past and Future
      Dr Benjamin Todd (CERN)
      28/11/2013, 15:00
      The LHC Availability Working Group has been looking into methods of exploiting machine and system availability metrics to optimise LHC physics production. This presentation outlines the key methods that have been identified for individually tracking equipment and machine availability in the 2010-12 period, from this the concept of an LHC Cardiogram has been produced, showing key...
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    13. 16. MMP Project – available methods and tools to support LHC operation post LS1
      Christophe Mugnier (CERN)
      28/11/2013, 15:30
    14. 11. Potentials of Petri nets for Availability Modeling and Analysis
      Dr Peter ZEILER
      28/11/2013, 16:15
      •Introduction •Dependability Modeling (Methods, Aspects) •Analysis and Prediction (Method and predictable parameters) •Tool: REALIST (Software Tool) •Large and Complex Systems (possibilities to deal with large systems) •Application Examples (from different applications in industry) •Summary & Conclusions
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    15. 12. Availability predictions for post LS1 operation and HL-LHC
      Andrea Apollonio (Vienna University of Technology (AT))
      28/11/2013, 16:45
    16. 13. Summary and Discussion
      ALL
      28/11/2013, 17:15
    17. 0. Introduction and motivation
    18. 7. Ongoing today: Cryogenics (no spare compressors for the future, what will be the effect on downtime, prediction/approach to preventive maintenance…)
      Eric Jean-Francois Duret (CERN)