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

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

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

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

BI (2)

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

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

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

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

Next Dry Run Scope week 11: Still to sort out: 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

OVERALL SUCCESSFUL FIRST DRY RUN… Conclusions OVERALL SUCCESSFUL FIRST DRY RUN…