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Draft mandate for rMPP

Draft mandate for rMPP. MP Panel Mandate.

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Draft mandate for rMPP

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  1. Draft mandate for rMPP

  2. MP Panel Mandate The machine protection systems protect accelerator and experimental equipment of the LHC and its injector complex against uncontrolled release of energy stored in the magnet system and the particle beams while at the same time allowing for efficient operation. The Machine Protection Panel (MPP) shall - in conjunction with relevant working groups (MP3, BLMTWG, COLLWG, LIBD ..) and experts of the equipment and operation teams - • ensure the coherent integration of all relevant sub-systems into the machine protection systems of CERNs existing accelerator complex and its future upgrades • approve all essential elements included in the machine interlock chain and address questions related to the dependability of the machine protection system • verify the proper commissioning of all MPS sub-systems and propose in collaboration with rMPP the safe operational envelope of the machine based on the state of commissioning

  3. define procedures for the operation of the machine interlock systems and required diagnostic tools • identify, assess and document relevant failure scenarios of equipment systems and machine components and propose according mitigation measures • specify functional requirements for additional protection systems to be developed, constructed and tested • The panel shall report to the LMC for all matters related to the LHC and to other relevant bodies for matters related to the injector complex (IEFC), future upgrades (HL-LHC) and new accelerators (FCC).

  4. Restricted MP Panel Mandate (presented and approved, LMC 24/3/2010) ‘Origin’: (More) formal approach to approving changes of LHC operating conditions for aspects concerning machine protection >> restricted committee of MP experts Mandate: • Evaluate the state of the LHC MPS in view of intensity increases. • Define boundary conditions for intensity increases (no. bunches, total intensity, injected intensity, b*...) –possibly also intensity decreases. Document decisions (positive and negative) –EDMS. Final approval of intensity increase by LMC, • Anticipate possible bottlenecks that would prevent future intensity increases and initiate appropriate actions (MPP or whatever appropriate).

  5. rMPP during Run 1 • Initial Members: J.Wenninger (Chair) and R.Schmidt (general MPS), J.Uythoven and B.Goddard (LBDS + injection), B. Dehning (BLMs + BI), R.Assmann (Collimation), M. Zerlauth (PIC/powering + BIS), A.Siemko (MP3 magnets), Massimiliano Ferro-Luzzi (Experiments), M.Lamont (OP) + S.Myers • Final Members: Andrzej Siemko; Benedetto Gorini; Bernd Dehning; Brennan Goddard; Chiara Bracco; Daniel Wollmann; Emilio Meschi; Jan Uythoven; Jorg Wenninger; Markus Zerlauth; Mike Lamont; Rudiger Schmidt (Chair); Stefano Redaelli • About 25 meeting from 2010-2012 (usually less than one hour) • About 7 reports to LMC • Some selected topics: intensity ramp-up, protection at injection, protection for TOTEM, RF issues and protection, issues related to interlocking, orbit feedback and beam dumps, …

  6. Introduction rMPP Mandate for LHC Run 2 • There is a need for a panel to discuss Machine Protection (MP) issues whenever a timely decision during LHC operation is needed. This is required during the intensity ramp-up (in order to agree to the next intensity step), as well as for other questions related to Machine Protection coming up during operation. Members of all systems relevant for machine protection, physics coordinator and operation are represented (Interlocks, Beam dumping and injection systems, Collimation, Magnet protection, Operation, Beam Instrumentation – namely BLM+BPMs in IR6, RF). • rMPP reports to LMC. rMPP will not discuss topics that are/can be treated in the Machine Protection Panel (MPP).

  7. Mandate • Evaluate the state of the LHC MPS in view of intensity increases and other changes of parameters relevant to machine protection (e.g. changes of optics, …). • Define boundary conditions for intensity increases (no. bunches, total intensity, injected intensity, bunch pattern, beta*...). Document decisions (positive and negative) in EDMS. Final approval of intensity increase by LMC. • Define boundary conditions for MDs and special (physics) runs related to machine protection. Approve MD-EDMS documents for MDs with an impact on MP. • Anticipate possible bottlenecks that would prevent future intensity increases and initiate appropriate actions (MPP or whatever appropriate). • Discuss issues that arise during operation related to MP and requiring timely reaction. • When required, assist operation and machine coordinators for questions related to MP.

  8. Members • It is suggested that one rMPP Member will be on-call, the coordinators or the EIC can contact rMPP when required. • Members: Chiara Bracco; Arjan Verweij as MP3 chair; Bernd Dehning; Wolfgang Höfle; Mike Lamont; Stefano Redaelli; Rudiger Schmidt; Jorg Wenninger; Daniel Wollmann; Jan Uythoven; Markus Zerlauth; ex-officio: Physics Coordinator • To be confirmed with the management • For info: Paul Collier, Brennan Goddard, Andrzej Siemko, Rhodri Jones, Gianluigi Arduini, Erk Jensen, Machine Coordinators • For approval: Freddy Bordry

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