Difference between revisions of "Noteable events list for d2n"

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(→‎Major Changes)
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*02/12/09
 
*02/12/09
 +
**8:30: North Linac access
 +
**12:01: Cell MOSS prepared
 +
**14:54: LHRS FrontEnd Busy set to 60us
 +
**16:17: Changed scintillator HV by 10%
 +
**16:47: Trigger Latch Pattern Map updated
 +
**17:52: ADC data ready wait loop changed from 1000 to 10000
 +
 +
*02/13/09
 +
**20:47: BB Cer 1pe adjusted to 50mV
 +
**21:15: BB cer signals moved to chan 32-63 of 1881 ADC in ROC8 slot 9
 +
**22:05: BB disc. group signal now 30ns(signal that is AND with shower)
 +
**23:02: shift BB retime L1A by 25ns
 +
**23:41: Hole in T6 trigger
 +
 +
*02/14/09
 +
**00:24: BB_sh T6 thresh -80mV
 +
**00:47: Removed T1 from BB datamon
 +
 +
*02/15/09
 +
**

Revision as of 18:04, 28 May 2009

Experiment Changes

Beam Pass Changes

Major Changes

  • 02/05/09
    • 18:05: 3He cell SAMANTHA and reference cell GMA installed
  • 02/07/09
    • 18:43-21:52: BB CAMAC crate down
    • 22:29: BB TDC delay cables fixed(~360ns)
    • 22:29: BB Cer output widths on discriminator set to 100ns
  • 02/08/09
    • 15:39: Oven temp controller replaced
    • 16:00: DAQ set to 1DAQ
    • 17:50: Ethane/Argon mix on pressure regulator at 1psi
  • 02/09/09
    • 17:03: BB MWDC gas system pressures returned (Ethane/Argon)
  • 02/10/09
    • 06:51: LHRS polarity set to +
    • 09:44: BB sieve in
    • 10:29: BB Wire Chamber thresholds changed C1=3.9V,C2=4.8V,C3=4.8V
    • 11:17: T6:threshold_BB -s BB_Sh -120mV->450MeV
    • 11:17: T1:threshold_BB -s BB_Sh_2 -80V->300MeV
    • 11:31: PMTs put in flash ADCs
    • 14:10: seive out
    • 14:16: PMTs back in V792 ADC
    • 16:35: RHRS DAQ restored for pvdis parasites
    • 17:55: BB T1,T6 thresholds set to -10mV
    • 18:15: BB polarity set to positive
    • 19:08: BB sieve in
    • 20:18: Threshold for BB_Sh=-0.120V BB_Sh_2=-0.080V BB_cer=-0.070V
    • 20:58: BB Cer T2 timing,outputs of AND units normalized to 150ns
    • 20:58: BB Cer T2 timing, output of P706 shortened to 50ns
    • 21:33: Compton HV = -1800V
  • 02/11/09
    • 03:25: Sieve out
    • 08:20: BB and LHRS polarity changed to negative
    • 09:56: DAQ put in 2DAQ mode
    • 09:58: T3 T4 trigger cables unplugged from BB
    • 11:17: 0.3x attenuuator added to photon signal going into DAQ
    • 15:18: BB MWDC threshold change
      • front = 3.898
      • mid = 4.800
      • back = 4.800
    • 22:56: Sync problems in ROC4, slot 18 (1875 TDC) missing gates in buffer mode
  • 02/12/09
    • 8:30: North Linac access
    • 12:01: Cell MOSS prepared
    • 14:54: LHRS FrontEnd Busy set to 60us
    • 16:17: Changed scintillator HV by 10%
    • 16:47: Trigger Latch Pattern Map updated
    • 17:52: ADC data ready wait loop changed from 1000 to 10000
  • 02/13/09
    • 20:47: BB Cer 1pe adjusted to 50mV
    • 21:15: BB cer signals moved to chan 32-63 of 1881 ADC in ROC8 slot 9
    • 22:05: BB disc. group signal now 30ns(signal that is AND with shower)
    • 23:02: shift BB retime L1A by 25ns
    • 23:41: Hole in T6 trigger
  • 02/14/09
    • 00:24: BB_sh T6 thresh -80mV
    • 00:47: Removed T1 from BB datamon
  • 02/15/09
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