1 / 17

CERN Machine Protection System: Protecting High Energy Accelerators for Safe Operation

Learn about CERN's Machine Protection System, designed to protect the high-energy accelerators at the Large Hadron Collider (LHC) and other machine locations. Discover the functions, hardware, layout, and specifications of this critical system.

kobayashi
Download Presentation

CERN Machine Protection System: Protecting High Energy Accelerators for Safe Operation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Thanks to: Machine Protection Panel, R. Schmidt, B. Puccio, M. Zerlauth and many more… 0v2

  2. Machine Protection System CERN, the LHC and Machine Protection

  3. Beam Interlock System Locations Designed to protect CERN high energy accelerators = SPS / LHC / INJ / EXT CERN, the LHC and Machine Protection

  4. Beam Interlock System Function BIS ~200 User Systems distributed over 27 kms Both-Beam LHC has 2 Beams Some User Systems give simultaneous permit Others give independent permit Beam-1 Beam-2 CERN, the LHC and Machine Protection

  5. Signals CERN, the LHC and Machine Protection

  6. Signals CERN, the LHC and Machine Protection

  7. Signals Hardware MATRIX = 9500Complex Programmable Logic Device (CPLD) Hardware Description Language (VHDL) NON-CRITICAL / Monitoring = DIFFERENT device CERN, the LHC and Machine Protection

  8. Layout In LHC, BIS forms a transparent layer from User System to Beam Dump CERN, the LHC and Machine Protection

  9. Layout CERN, the LHC and Machine Protection

  10. Layout CERN, the LHC and Machine Protection

  11. Beam Permit Loops & BICs Beam Dump Beam-1andBeam-2 4 fibre-optic channels from Point 6 1 clockwise & 1 anticlockwise for each Beam • Square wave generated at IP6 • Signal can be cutby any Controller • Signal can be monitoredby any Controller When any of the four signals are absent at IP6, BEAM DUMP! Beam-1 / Beam-2 areIndependent! Beam Interlock Controllers (BIC) 16 BICs per beam - Two at each Insertion Point Up to 20User Systems per BIC 6 x Beam-1 8 x Both-Beam 6 x Beam-2 CERN, the LHC and Machine Protection

  12. LHC Function CERN, the LHC and Machine Protection

  13. Typical Hardware User Interface BIC (Front) BIC (Rear) CERN, the LHC and Machine Protection

  14. Specification Fast = 100μs over 27 km Redundant User Permit = Safe Redundant Power Supplies = Available Glitch Filters = Available Critical is Hardware Only Critical physically separated from non-critical NO remote update of critical CAN remote update non-critical Modular in-house design 20 year lifespan Every Board Tested during fabrication Every Controller exhaustive critical test before installation (4h sequence) Installed system can be fully tested on demand Pre operational checks Full online consistency monitoring during operation Post operational checks CERN, the LHC and Machine Protection

  15. FIN CERN, the LHC and Machine Protection

  16. References / Acknowledgements [1] CERN’s mission statement http://public.web.cern.ch/public/en/About/Mission-en.html [2] Aerial view of CERN http://cdsweb.cern.ch/record/39026 [3] LHC Machine Protection http://cern.ch/AccelConf/p07/PAPERS/TUZAC03.PDF [4] CERN photography http://cdsweb.cern.ch/ [5] CERN. LHC Cost and Schedule Review Committee Report, 15 December 2003. http://user.web.cern.ch/user/LHCCost/2003-12-15/CostScheduleReview2.pdf [6] CERN. ATLAS Technical Proposal for a General-Purpose pp Experiment at the LHC at CERN, 15 December 1994. http://atlas.web.cern.ch/Atlas/TP/NEW/HTML/tp9new/tp9.html [7] CERN. CMS Technical Proposal. [8] CERN. ALICE Technical Proposal for A Large Ion Collider Experiment at the CERN LHC, 15 December 1995. http://doc.cern.ch//archive/electronic/other/generic/public/cer-000214817.pdf [9] CERN. Status of the LHCb Experiment, 30 September 2005. http://lhcb-doc.web.cern.ch/lhcb-doc/progress/Source/RRB/October_2005/RRB_status.pdf [10] CERN. CERN AC Note 2000/03: General description of the CNGS Project, 2000. http://proj-cngs.web.cern.ch/proj-cngs/GeneralDescriptionVe/GDVe_p03.htm [11] CERN, LHC FAQ http://cdsweb.cern.ch/record/1092437/files/CERN-Brochure-2008-001-Eng.pdf CERN, the LHC and Machine Protection

  17. References / Acknowledgements [12] CERN - Scientific Information Service - Archive. Chronologie du CERN, 2005. http://library.cern.ch/archives/chrono/chrono_2002_cern.php [13] R. Assmann and other. requirements for the LHC collimation system. In Proceedings from EPAC’02, La Vilette, Paris, France, 3-7 June 2002. adapted from http://accelconf.web.cern.ch/AccelConf/e02/PAPERS/TUAGB001.pdf [14] V. Kain et al. Material damage test with 450 gev LHC-type beam. In Proceedings from PAC’05, Knoxville, TN, USA, 16-20 May 2005. http://accelconf.web.cern.ch/AccelConf/p05/PAPERS/RPPE018.PDF [15] R. Schmidt and J. Wenninger. Protection against accidental beam losses at the LHC. In Proceedings from PAC’05, Knoxville, TN, USA, 16-20 May 2005. http://epaper.kek.jp/p05/PAPERS/MOPA005.PDF CERN, the LHC and Machine Protection

More Related