Outcome LBDS Dry Run week 7

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• 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

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LBDS Dry Run week 7

• http//wikis/display/LHCOP/LBDSDryRuns
• 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/ChecklistandOutcomew
  eek7

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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)
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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
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LBDS equipment and software (2)

• Artificial energy reference BETS simulator

To not generate interlock, need slow ramps up
and down
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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

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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/XPOCstatus

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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

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Conclusions

• OVERALL SUCCESSFUL FIRST DRY RUN