My Field Manager Notes

Bookmarks

ECALRunSequence

ECAL P5

OnlineWBContactList

EcalRFM

PFG analyses

Trigger rates

Status

• Must improve recovery procedure

• FEDs in global:
  • ECAL: all!
    • trigger: all barrel
  • ES: only 548,549,551,553,554,555,556,557,560,561

• Plans for Thursday:
  • Tests:
    • DCCs in EB+15 and EB+17
    • Endcap Selective Readout
    • DCC weights
    • SRP sTTS?
  • Local runs:
    • Gain Ratios
    • Pedestal Offset scan in EB+7
  • HV problems in EB+15 and EB+10

• ZS thresholds with old weights
  • EB, ZS mode: L1ZS=L2ZS=7
  • EE, ZS mode: L1ZS=L2ZS=12
  • EB, SR mode: L1ZS=L2ZS=9
  • EE, SR mode: L1ZS=L2ZS=13

• New weights (-383, -383, -372, 279, 479, 380)
  • EB, ZS mode: L1ZS=L2ZS=7
  • EE, ZS mode: L1ZS=L2ZS=12
  • EB, SR mode: L1ZS=L2ZS=8
  • EE, SR mode: L1ZS=L2ZS=13

9 Aug 2009

• Smooth except for "LED accident"

8 Aug 2009

• Magnet ramped up at 14
• Pedestal offset scan taken
• Back to global at ~18.00

7 Aug 2009

• Magnet rump-up Sat not before 9am
• Technical stop 17 Aug will be postponed

5 Aug 2009

• Running smoothly overnight. SR in EB since yesterday
• Few spikes in the EG1 L1 rate.
  • Being investigated and seems related to individual crystals/trigger towers.
  • Has periodicity
• Three FEDs out of the run. Will stay like this.
• HLT excercise: EB- and EE+ (test SR)

4 Aug 2009

3 Aug 2009

• Running smoothly during the night.
• Observed few spikes in the trigger.
• Took ~2.5 hours to recover crystals after power cut
  • ~1hour to turn on and check DCS (all crates were switched off by hand)
  • ~1.5hour for DAQ (mostly because of one FED)
• ES was faster ~1hour
• Ready for global at ~22.15. First run at 1am!
• Very severe noise seen at 2am
• Running in Selective Readout with EB-. Waiting for T0 to be ready.

2 Aug 2009

• Cooling problem caused ES and laser to go off at ~20.00
• ES eventually recovered at 1am

1 Aug 2009

• Running without Laser from 6 in the morning. Laser eventually rapaired during the morning. At 11 still waiting for the run finish.
• Discovered that we are triggering on test pulse.

31 Jul 2009

• Problem with DCC weights in EE- and EB+ after yesterday excercise. Fixed by power-cycling crates.
• One more laser problem in the morning

30 Jul 2009

• Summary of the day:
  • FEDs with problems last night go recovered
    • 632 (EB+5) spontaneously
    • 613 () power-cycling the crate
  • FEDs with problem from last week
    • EE+4, EB+15, EB+17 have missing SRP block, but SRP decision applied. Firmware issue, could explain last week instabilities.
    • nevertheless running in ZS and SR mode (not destroying anything)
  • Took validation runs with SR and ZS at 100 (!) and 30 kHz respectively
  • DCC zero suppression weights still have tecnical problems. Can not reliably check whether the values were correctly configured
  • SRP problems fixed * out-of-sync caused by wrong masking + timeout failure in the firmware: fixed by fixing the software
  • Trigger key coming

• ES program for the day
  • firmware burning to eprom
  • check that local running does not interfere with global
  • look at pedestals w/ magnetic field
  • common mode algo test @1kHz

29 Jul 2009

• Very high trigger rate during the night. ECAL taken out of the trigger for the night.
  • Understood to be a mistake of the trigger shifter that put EE in.
  • Situation restored in the morning.

• ES event mismatch errors.

28 Jul 2009

• Running smoothly during the night.

• Afternoon
  • Switched on ECAL at ~15.45
    • Four supermodules had problems with HV. Eventually solved by power-cycling.
    • Laser air conditioning problem also eventually fixed.
  • Loaded and verified the 3.8T pedestal offsets
  • Joined the global run at ~17.00

27 Jul 2009

• Saturday: problem in Laser barrak. No communication GPIB controller. Hard reset of the system solved the problem.

• During the night: problem in Laser barrak. No communication GPIB controller. Expert intervention in the morning fixed the problem.

• Saturday night: L1EG10 trigger rate went to 250Hz for 1.5hours and then dropped again to 100Hz. Being investigated by PFG. Nothing clearly anomalous seen.

• ECAL off at 8.15-8.45. Expected to be off until the magnet reaches stable conditions.

• Problem with magnet. Restart at 0T sometime in the afternoon.