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The LHC Access System

The LHC Access System. Status report – May 2005 P. Ninin & the Access project team TS/CSE. Agenda. Project overview Architecture Organisation Challenges Conclusion. LHC buildings access. LHC experimental services areas access * ACCESSIBLE during beam operation. LHC sites access.

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The LHC Access System

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  1. The LHC Access System Status report – May 2005 P. Ninin & the Access project team TS/CSE

  2. Agenda • Project overview • Architecture • Organisation • Challenges • Conclusion

  3. LHC buildings access LHC experimental services areas access * ACCESSIBLE during beam operation LHC sites access the LHC accelerator and experiment Access Service Access Tunnel Access Experiment NON ACCESSIBLE during beam operation

  4. Scope LHC Access Safety System LASS Interlock System Beam => No Access Access => No Beam LHC Access Control System LACS Off-the-shelf Access Equipement Integrated concept for LHC Machine & Experiments to protect people against the LHC radiation hazards.

  5. LHC Access Control System Goals: • Manage access rights • Identify user • Verify authorization • Automatic or remote access control Status: • Contract running since September 04 • System engineering completed • Factory Acceptance Test (Cegelec Marseille) May 05 • Site acceptance of the pilot installation “LHC 0” - June 2005 • Organisation of the LHC 8 installation – October 2005 • Organisation of the LHC tunnel doors/grids installation • Done by TS/IC

  6. LHC Access Safety System Goals: • Protect personnel during Beam operation • nobody inside - Stop LHC if a door is forced • Allow Access operation when safety conditions are met • No radiation hazards (LHC beam, RF). • Distributed, highly reliable interlock system • Strictly designed according to the prescription of the IEC 61508 • To be demonstrated to the French Nuclear Authority INB Status: • HW and SW Architecture prototyping (Siemens Safety Matrix). • Good progress on the : • Project documentation • Cabling • Safety studies. • Identification of the LHC machine elements that will be interlocked is completed • Tender for the system realisation, installation and commissioning.

  7. Project Organisation

  8. ACCESS CONTROL ACCESS SAFETY LHC Access Safety LHC Access Control

  9. Operational Dosimeter Integration N. Rama

  10. Man Machine Interface M. Munoz, L. Hammouti, G. Roy

  11. LHC Elements interlocked

  12. Safety LASS LACS Integration & Installation INB AIWG LHC Access System Principles (AIWG) Safety Plan Access Safety Specification Access Control Specification LHC Sectorisation & Integration Review Preliminary Risk Analysis Access Safety Architecture Design Access Control Tendering Cabling Definition Safety Function Specification Access Safety Tendering Contract Access Control Design Installation preparation Preliminary Safety Study (Architecture) Contract Access Safety realisation Access Pilot Installation LHC0 Installation

  13. Installation phases LHC Access Commissioned INB Tests RF Tests Injection Tests Installation HW commissioning Machine checkout Beam operation Access Safety Provisional installation Access Safety validation Surface Access Control Installation + CCC + Wherever possible Underground Access Control Limit the constraint of transport

  14. Open issue/Challenges • Experiments • Further investigation required • Pilot installation: • Integration of the numerous technologies involved • Validation of the system by the users • Safety validation of the global architecture • To ensure that the safety requirements (INB) are met • Finish the integration (1,2,3,4,5,6) and organise the installation • Cabling • Strategy and LHC point 8 are OK, • Specify the cabling architecture for the remaining LHC points • Review and Optimise the full CERN Access « process » • Training, authorizations

  15. Conclusion • Architecture of the LHC Access System is now designed, and is checked to verify that it meets the safety requirements of the LHC operation and the IEC 61508. • A pilot installation will be tested in the summer 2005 to validate the concept with the users as well as the integration and performance of the numerous sub-systems. • The specification of the LHC Access Safety side is completed, the hardware and software architecture has been studied, progressing on the prototype. • A call for tender has been launched to cope with the LASS programming and installation. • The identification of the machine elements that will be interlocked is completed. • Despite the difficulty encountered for the system specification, for the time being: • In line with LHC planning

  16. Thanks to the LHC Access project Collaborators: T. Pettersson L. Scibile J.-F. Juget S. Di Luca T. Riesco N. Rama S. Grau M. Munoz M. Boffard E. Sanchez-Corral Mena T. Ladzinski G. Smith A. Day D. Swoboda F. Rodriguez Mateos G. Roy With the help of : CEGELEC – SCHNEIDER - SIEMENS

  17. Access Equipment Integration S. Di Luca/ EDMS 342649

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