Set-Up Instructions for First Collisions 450 GeV

Included Subsystems

  • Subsystems In: ALL but ALFA MMEGA
  • Subsystems Out: ALFA and MMEGA

Useful Information

Filling scheme

  • We will run the first part of the test with flat bunch groups. Later we will load the following bunch scheme


  • Call CTP expert on-call and have them set:
  • Simple Dead Time 4
  • complex 15/370 (L1calo), 42/381 (TRT), 8/350 (LAr), 3/400 (PIX/IBL)

Run Control

  • beam type: protons
  • data tag: data15_comm
  • recording: enabled
  • lumiblock length: standard



  • The preferred algorithm is MBTS_EventAND
  • It needs ATLAS partition to be RUNNING to give meaningful luminosity values
  • It will become ATLAS_PREFERRED for the instantaneous luminosity tonight (will thus be forwarded to LHC Page 1)
  • It is sent to LHC via dip folder:
  • dip/ATLAS/LHC/LumiScan0 (set to preferred)
  • The backup algorithm is BCMTOR, sent in dip folder:
  • dip/ATLAS/LHC/LumiScan6
  • It does not need ATLAS to be RUNNING
  • IntTime needs to be changed to 1or 2 seconds (7 seconds right now). It will be changed at the same time we switch the ATLAS_PREFERRED tonight.

Event Display

Changes done to flip to Cosmics which need to be reverted tomorrow.

  • Complex deadtime Bucket 3 : 2/400 needs to go back to 3/400
  • simple deadtime 21 on request by CTP to have larger readout window.
  • remember to have beam spot, and OLC to HLT disabled
  • remember to have ROI L1 TOPO disabled
  • Could possibly enable muon triggers in all sectors

-- Main.apolini - 2015-05-04

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Topic revision: r4 - 2015-05-06 - bschneid
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