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Outcome LBDS Dry Run – week 7

Outcome LBDS Dry Run – week 7

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Outcome LBDS Dry Run – week 7

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  1. Outcome LBDS Dry Run – week 7 Ioan Kozsar; Julian Lewis; Benjamin Todd; Bruno Puccio; Lars Jensen; Ana Guerrero Ollacarizqueta; Stephane Bart Pedersen; Michael Ludwig; Bernd Dehning; Christos Zamantzas; Jean-Jacques Gras; Jan Uythoven; Etienne Carlier; Nicolas Magnin; Nicolas Voumard; Christophe Chanavat; Marine Gourber-Pace; Ronny Billen; Chris Roderick; Reyes Alemany Fernandez; Vito Baggiolini; Fabio Follin; Markus Albert; Guy Crockford; Marek Misiowiec; Grzegorz Kruk; Jerome Axensalva; Eric Gallet; Brennan Goddard; Mike Lamont; Verena Kain

  2. LBDS Dry Run week 7 http://wikis/display/LHCOP/LBDS+Dry+Runs • Scope week 7 – preparation for scenario “programmed dump beam 1”: • Trigger Beam Dump system from the control room via timing event directly • Test point 6 BI in XPOC acquisition mode • Test sequencer driving the LBDS: programmed dump • Sort out first version of XPOC analysis and communication to the sequencer • Outcome week 7: http://wikis/display/LHCOP/Checklist+and+Outcome+week+7

  3. Timing Table – week 7 Normally Triggered beam dump In week 11 it will be the broken permit loop Start table event, payload 17 (Hex 11)

  4. BI (1) • Worked fine in XPOC acquisition mode. Did not look into data integrity. • Video signals from screens need some attention – will be done for next dry run. • Fixed displays need to be cleaned up a bit – have too many now. • BTVs • BLMs (will only concentrate on the BLMs associated with extration equipment) • BPMSE, BPMD • BCTFD

  5. BI (2)

  6. LBDS equipment and software (1) • Kickers and protection worked fine. • OR: AS THEY WERE SPECIFIED. • Acrobatics to “arm” the system: • In order to arm LBDS: • Need to arm BETS • Need to be below injection engery • Need to arm IPOC • Need to arm the kickers • Need to arm overall LBDS (TSU together with BIS, removes injection permit) • Could get ourselves into situations (BEM interlock), where we could not arm anymore • BEM interlock: energy freezes – need to be below 450 GeV to arm • Without “stop”, “start”, “reset”, “rearm” could not have got back • Sorted out for next dry run LBDS Control and Monitoring GUI (M. Albert) Week 7

  7. LBDS equipment and software (2) • Artificial energy reference – BETS simulator: To not generate interlock, need slow ramps up and down

  8. Sequence • Overall result: we could drive the whole system through the sequencer without any problem!!! • A couple of improvements required: • Cannot set time without SQL script on LSA DB • If-else statements are required to describe complicated state machines of LBDS system: • They must be automatically executed and “old” sequence automatically resumed • Looping • RBAC for certain sub-sequences/tasks: e.g. if “reset” of BETS required • Improvements will be there for the next dry run • Except RBAC

  9. XPOC • Had the first version of the overall system. Looks already promising… • Was triggered with timing event “beam 1 dumped” to start data collection and analysis as in final version • Data collection needs to be improved (exception handling,…) • Now everything written to SDDS • Might partly go to logging DB • Improvements required for next dry run: • Analysis not yet integrated with XPOC server • Results and state not yet published via JMS for logging and SIS; written to DB only for the time being • GUI is required • More XPOC specific comments see WIKI: http://wikis/display/LHCOP/XPOC+status

  10. Next Dry Run • Scope week 11: • Beam dump system beam 1: programmed dumps • Local permit loop • RF simulated revolution frequency • Programmed dumps via timing system to break permit loop • LBDS triggered by broken permit loop • Still to sort out: • Arming, XPOC, BETS Simulator, Sequencer follow-up • Permit loop – fibers, copper cables to LBDS • BIC/BIS FESA classes to arm, link/unlink permit loops • BIS supervision • Timing CIBU, test of detection of broken permit loop • Remove input of direct BLMs to TSU • LASS to be strapped • TSU tested • N2 pressure and line vacuum display • Lower priority • Sequence modified to take all that into account

  11. Conclusions OVERALL SUCCESSFUL FIRST DRY RUN…

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