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Preparation for Machine Check-Out Status

Preparation for Machine Check-Out Status. Gianluigi for the Machine Check-Out Team (Mike, Reyes, Rossano) ….and many thanks to Georges-Henry, Jörg, Markus and many others. Approach….so far.

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Preparation for Machine Check-Out Status

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  1. Preparation for Machine Check-OutStatus Gianluigi for the Machine Check-Out Team (Mike, Reyes, Rossano) ….and many thanks to Georges-Henry, Jörg, Markus and many others LHCCWG- Machine Check-out - GA

  2. Approach….so far • Extended LTC presentations used as starting point for the discussion and to address the (many) open questions or unclear points • Identification of the Machine Check-Out contacts (possibly people “on the field”) for each System (largely based on Roger’s table at OP WS 11/07) • First round of discussions to collect information: • Plans for the HW/SW availability • Status of the commissioning • Requirements for commissioning time in preparation for beam • Status of the tools in CCC (Alarms, logging, Application SW) and feedback on them • Definition of possible dates for preparation tests • Interfaces with other systems • What needs to be done during a standard cold check-out • For the moment the contact is very useful and informative but the information flow is still slow (people busy on the optics of finalizing their HW) LHCCWG- Machine Check-out - GA

  3. Systems Table üContacted -ûNot contacted, yet – MsMrsMr-X = eqpt. contact LHCCWG- Machine Check-out - GA

  4. Systems Table LHCCWG- Machine Check-out - GA

  5. Access & DSO tests • Non-conformities found in week 2 being fixed. • LHC DSO tests proposed dates (after discussion with TS/AB/HWC to be further discussed with the experiments, first –somehow expected- reaction is negative): • Preparation by TS/ASE: starting 5/6/2008 12:00. • Global DSO test 1: 6-9/6/2008 (included) in addition to the TI2 DSO test. Patrol on 6/6/2008. • Global DSO test 2: 20-23/6/2008 (included). Patrol on 20/6/2008. Need to go through committees like ICC, etc. to try and get a rubber stamp (?) • They add (and partly overlap) to the TI2 and TI8 DSO tests and beam commissioning (organized by Rossano): • TI8 DSO test: 16/5/2008 • TI8 beam test: 24-25/5/2008 • TI2 DSO test: during global DSO test 1 • TI2 beam test: 14-15/6/2008 LHCCWG- Machine Check-out - GA

  6. Beam Instrumentation • See JJ’s presentation at LHCCWG 11/3/08: • Activities supposed to start ~10/4  not yet.. • Need to start ASAP (JJ promised this week!!)  By middle of May Cool-down of sector 4-5  access will then be difficult for the instrumentation in LSS4 • BTV system in a pretty good shape (used for Dry runs)  although not all BTVs under control, yet • Matching monitor: after discussions at the e-LTC agreed with BI to have turn-by-turn acquisition on BSRT (in parallel to standard “slow” acquisition) from day 1 with possibility of installing a fast camera on one of the OTR screens in LSS4 (2-4 hours access) in case of problem (the infrastructure for that is being prepared). • BLMs are certainly a major/complex system. Coming up with logging in some points. EMC tests done with kickers (in 2, 8 and 6, need to do in point 4). Not yet with magnets (suspected interference with TL magnet pulsing – tbc). Need reliability run and verification of concentrator and logging  Discussion with Bernd LHCCWG- Machine Check-out - GA

  7. Issue of the installation of the optical fibres seems solved: should be completed by the end of April Preliminary planning for the IST: trying to discuss the order with Bruno in order to get a better match with availability of the sectors from HWC Overall cold check-out requirements: Some useful information in MPS Commissioning Procedures to be detailed and quantified  Jörg and Bruno (with Jan and Alick). First version of the BIC supervision programme available (experience from SPS). Alarms will appear there. BIC LHCCWG- Machine Check-out - GA

  8. Collimators • All HW installed (except TCTVB in pt. 2 and 8 due to contamination of the tank) • IST ongoing (expected to be finished by end of May). Dry runs started  Mike, Stefano • Overall cold check-out requirements: • The tests required to establish Machine Protection Functionality (i.e. tests during cold check out with all the other systems) only sketched  Ralph promised that for this week (also requested by MPSC) • Logging being put in place (Stefano) • Alarms need to be defined (Georges-Henry, Markus, Stefano) • First version of the fixed displays available • Protection with RBAC and MCS to be tested • Interface with BLMs (BLM concentrator, fast BLM acquisition to be tested) • Separation between collimators and injection/dump protection devices for the controls not totally clear… LHCCWG- Machine Check-out - GA

  9. Cryogenics • From the HWC experience: main issue is the Cryogenics support (resources for operation) • Tools to get the status of the cryogenics are/are being made available: • Cryo-start/maintain status for each sector • GTPM view with dependencies from other systems • Normalized heat loads (initially normalized cryo -valve opening and temperatures, later normalized virtual heat-loads) per cell  useful to identify possible localized losses, vacuum bumps… • Insulation vacuum warnings might be useful  being discussed • No time required for Machine Check-Out. Although having the above displays soon might be useful to follow the cryo behaviour as soon as Sectors become available LHCCWG- Machine Check-out - GA

  10. Power Converters • No major issues: most of the tests done during HWC, nevertheless: • EMC tests not completed (in particular with kickers) • Exercising with nominal currents and trimming (e.g. behaviour close to zero current) • Need to be done before taking beam  possibly as we take the sectors coming-out of the HW commissioning • Alarms are available (need to verify reduction criteria and details) • Logging implemented (to be verified systematically) LHCCWG- Machine Check-out - GA

  11. QPS/EE • From the HWC experience: main issue is the expert support (resources for operation) • No additional tests are required during cold check-out • Tests will be required after every SD  K. Dahlerup-Petersen, R. Denz to provide the procedures for future reference • Alarms (available for some of the sectors, not yet for 5-6) LHCCWG- Machine Check-out - GA

  12. RF - Transverse Feedback - Beam Observation • All HW installed in the tunnel • In general the power part is in a good shape • Low-level part and even more control SW are lagging behind • Fast signals (pre-pulses, frev, 40 MHz to expt., etc.) not yet distributed • The same for observation tools (FESA classes and application SW, OASIS signals not available) • Expecting a summary of the situation and schedule (by the end of this month) • Alarms and logging available. But only for RF cavities for the time being • No specific requests of time for Machine Check-Out, so far LHCCWG- Machine Check-out - GA

  13. Timing • HW installed and running but: • Safe Machine Parameter Controller (carrying information about energy, intensity) not yet in its final version  Simulated values • Beam Permit flags not yet wired to timing • Schedule to be discussed with B. Puccio • Monitoring tools for the timing is very important as timing is playing a critical role (more than in the SPS or LEP) in the safe operation of the machine: • Alarms when timing events are not sent or delayed • Tools to dump expected vs. distributed events are needed in case of error  Julian could have a tool for that • All the mechanics of the injection must be tested all through the chain both for the pilot filling scheme for commissioning and for the “nominal” filling scheme  Dry run on 8/5 being organized. LHCCWG- Machine Check-out - GA

  14. Vacuum • Vacuum installation almost complete. Expect to close and pump the experimental areas by the end of May. Still true? Waiting for plan from AT/VAC • Vacuum valves and their control tested but for the moment not in remote control (disconnected and blocked IN)  need the beam info from BIC • Alarms are available for beam/insulation vacuum  reduction to be applied to avoid too many alarms when problems  Markus, Georges-Henry. Information about insulation vacuum could be useful to anticipate possible problems for the cryogenics • Logging: • defined for the vacuum pressures (both for insulation and beam vacuum but for the latter no data yet) with an acquisition rate of <~1/min. Sufficient for the beam pressures? • for position of the valves on change. • Application is OK: some minor modifications requested  presentation at the next LHCCWG (I. Laugier) LHCCWG- Machine Check-out - GA

  15. General Issues • Verification of UPS connection of critical equipment is (was) part of the HWC: not done for sector 4-5 and 5-6 (so far)  impact on cryogenics and organization • Status of the compensators and behaviour at full load (e.g. Pt. 2 and Pt. 4) • Post-mortem not really addressed yet • Logging & alarms  entries are coming  needs some order and verification • Trying to cope with the little “solid” information on the overall HWC and Installation plans for the time being…even more difficult now that HWC is not appearing in the official planning • Issue of the DSO tests dates  LHCCWG- Machine Check-out - GA

  16. Next step: take ownership of Sector 5-6 • Started discussions with HWC (~second week of May). Useful for the definition of the procedures of the cold check-out: • Generate and load nominal functions 5 TeV & ramp all the magnets • Training in the late afternoon (only dipoles?) • Trim (chromaticity, tune, coupling, beta beat, orbit correction) and verify the effect of the trim. • Connect BIC (beam info needed for the vacuum valves), t.b.c. • Vacuum controls in remote (valves, vacuum pumps) • Add distributed instrumentation (BLMs –already available in L6-, BPMs, BTVs, RAMSES, RADMON) • Add Beam dump elements • Add collimators (few) and protection elements (available?) • SIS verification • Verify fixed displays, alarms (by sector), logging • … LHCCWG- Machine Check-out - GA

  17. Hand-over of a Sector • We need to know/have from HWC: • List of tests done • List of maximum currents • List of non-conformities. There are a lot of them with decision pending. Shall we go through them here before taking over a sector? Can we do differently? • Access in the machine in the handed-over sectors should go through the EIC on shift • ….anything else? • Needs to run handed-over sector: • Availability of a (at least) a console for Machine Check-Out • Some Wall displays • Suggestion: TI corner close to the Cryo people LHCCWG- Machine Check-out - GA

  18. To be put in place • Names of people attached to each of the system tests for 5-6: • I guess that Mike, Jörg, Reyes, Rossano and myself will be around most of the time, but • Tests of the various systems: • Applications • Verification of the logging • Alarms Should be done with the help of the system commissioners (e.g. vacuum  Frank,…) on agreed periods, as well as the follow-up of specific issues • Information collected so far and follow-up + first embryo of the check-out procedures will be put in a web-repository/page connected to LHCCWG and Dry runs pages  Reyes once she is back from holidays • Starting on the middle/end of May: • Should start more regular meetings to review progress in the preparation of the HW with eqpt. contacts. (merging with ABCIS?) • Regular reports to LHCCWG LHCCWG- Machine Check-out - GA

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