Difference between revisions of "Trigger History"

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(Aug 2018)
(Aug 2018)
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*Aug 9 2018 : Removed El_CLEAN from SHMS/HMS reference time [https://logbooks.jlab.org/entry/3585301  Log Entry]
 
*Aug 9 2018 : Removed El_CLEAN from SHMS/HMS reference time [https://logbooks.jlab.org/entry/3585301  Log Entry]
 
* Aug 9 2018: In ROC03 and ROC06 the widths were 50 and 45 ns, respectively. Changed to 30 ns. [https://logbooks.jlab.org/entry/3585150  Log Entry]
 
* Aug 9 2018: In ROC03 and ROC06 the widths were 50 and 45 ns, respectively. Changed to 30 ns. [https://logbooks.jlab.org/entry/3585150  Log Entry]
* Aug 9 2018: Replced the SHMS Pusle shaper for the FADC reference time. [https://logbooks.jlab.org/entry/3585279 Log Entry]
+
* Aug 9 2018: Replaced the SHMS Pulse shaper for the FADC reference time. [https://logbooks.jlab.org/entry/3585279 Log Entry]
 +
* Aug 13 2018: Replaced the SHMS Pulse shaper for the FADC reference time. [https://logbooks.jlab.org/entry/3586571  Log Entry]
 
* Work done over the summer to adjust SHMS hodoscope cable lengths to compensate for the two different PMT types used in the hodoscope with different transit times.
 
* Work done over the summer to adjust SHMS hodoscope cable lengths to compensate for the two different PMT types used in the hodoscope with different transit times.
  

Revision as of 09:55, 4 June 2020

Dec 2017

  • Dec 7 2017  : NIM modules for setting the pulse width of S1X,S1Y,S2X and S2Y before the HODO 3/4 trigger changed to 758 from 752 in SHMS and HMS Log Entry
  • Dec 8 2017  : HMS/SHMS HODO thresholds at 30mV. Log Entry
  • Dec 8 2017  : Oscilliscope pictures of HMS trigger using EDTM Log Entry
    • Note that this quickly changed and use later pictures.
  • Dec 8 2017  : Oscilliscope pictures of SHMS trigger using EDTM Log Entry
    • Note that this quickly changed and use later pictures.
  • Dec 12 2017 : Oscilliscope pictures of HMS trigger using beam. Log Entry
    • In HMS HODO 3of4 S1X is now sets the timing. All widths are 50ns.
    • In HMS EL_LO which is a 2/3 from PR_LO,STOF and HODO 3of4, the STOF sets the timing.
    • All other signal widths at 50ns.
  • Dec 19 2017  : Oscilliscope pictures of SHMS trigger using beam. Log Entry
    • In SHMS HODO 3of4 S1X is now sets the timing. All widths are 100ns.
    • In SHMS EL_LO which is a 2/3 from PR_LO,STOF and HODO 3of4, the STOF sets the timing.
    • All other signal widths at 50ns.
  • Dec 21 2017  : Oscilliscope pictures of SHMS/HMS coincidence using beam. Log Entry
    • Signal widths at 50ns.
    • HMS sets timing.
    • Elastic data with SHMS p = -1.816, theta = 25.01 and HMS p = +0.957, theta = 53.3

Jan-July 2018

  • The HMS triggers (when HMS single DAQ mode):
    • Trig1= HODO 3of4
    • Trig2 = EL_REAL
    • Trig3 = El_CLEAN
  • The SHMS triggers (when SHMS single and coin DAQ mode):
    • Trig1 = SHMS HODO 3of4
    • Trig2 =SHMS EL_REAL
    • Trig3 =SHMS El_CLEAN
    • Trig4 = HMS HODO 3of4
    • Trig5 not used
    • Trig6 = Coin SHMS HODO 3of4 && HMS HODO 3of4
  • Jan 10 2018 : Check SHMS/HMS gate widths at 50ns and thresholds at -30mV. Log Entry.
  • Jan 15 2018: Shift the STOF by 15ns in the SHMS and HMS EL_LO triggers. Log Entry
  • Jan 18 2018 : Adjusted HMS timing in the coincidence trigger for having both spectrometers with beta near 1. Log Entry
  • Jan 23 2018 : Removed the HMS STOF from reference time signal. Log Entry
    • SHMS STOF was also removed, though no logbook entry about it.
  • Feb 16 2018: Add cabling for the "6 GeV" electronic deadtime measurement.Log Entry.

Aug 2018

  • Aug 9 2018 : Removed El_CLEAN from SHMS/HMS reference time Log Entry
  • Aug 9 2018: In ROC03 and ROC06 the widths were 50 and 45 ns, respectively. Changed to 30 ns. Log Entry
  • Aug 9 2018: Replaced the SHMS Pulse shaper for the FADC reference time. Log Entry
  • Aug 13 2018: Replaced the SHMS Pulse shaper for the FADC reference time. Log Entry
  • Work done over the summer to adjust SHMS hodoscope cable lengths to compensate for the two different PMT types used in the hodoscope with different transit times.

Sept 2018

  • Added additional coincidence trigger as TRIG5. Changed SHMS TRIG3 to be HMS EL_REAL.
  • The HMS triggers (when HMS single DAQ mode):
    • Trig1= HODO 3of4
    • Trig2 = EL_REAL
    • Trig3 = El_CLEAN
  • The SHMS triggers (when SHMS single and coin DAQ mode):
    • Trig1 = SHMS HODO 3of4
    • Trig2 = SHMS EL_REAL
    • Trig3 = HMS El_REAL
    • Trig4 = HMS HODO 3of4
    • Trig5 = Coin SHMS HODO 3of4 && HMS EL_REAL
    • Trig6 = Coin SHMS HODO 3of4 && HMS HODO 3of4
  • Sept 27 2018: Check of the reference times Log Entry.
  • Sept 27 2018: Oscilliscope pictures of HMS trigger Log Entry.
    • All HMS signal width are 50ns.
    • For HMS EL_LO_LO , HMS HODO 3of4 takes timing.
  • Sept 27 2018: Oscilliscope pictures of SHMS and COIN trigger Log Entry.
    • All SHMS signal width are 50ns for triggers, except S1_OR and S2_OR going into STOF which looks like about 30ns.
    • For SHMS EL_LO_LO , SHMS HODO 3of4 takes timing.
    • For both coincidence triggers, the SHMS is 100ns wide and HMS is 60ns wide. With HMS setting the timing.
  • Oct 2 2018: Adjusted widths of SHMS/HMS coincidence signals for TRIG5. Oscilliscope pictures Log Entry.
    • SHMS Hodo 3of4 width reduced to 60ns.
    • HMS EL_REAL width reduced to 20ns
    • The TRIG6 is now SHMS Hodo 3of4 width of 60ns && HMS Hodo 3of4 width of 60ns.
  • Nov 27 2018: Polarity flip of the reference times. Log Entry.
    • This applies to post coincidence run 6576.
    • Made the coincidence time resolution was improved to match what was seen in Spring 18.
    • Detailed discussion Log Entry.

Feb 2019

  • Feb 2019 :DAQ changes for the J/Psi experimentLog Entry.
    • Noble Gas Cerenkov replaced the Heavy Gas Cerenkov in the SHMS EL_REAL
  • Feb 9 2019: Oscilliscope pictures of HMS trigger Log Entry.
  • Feb 9 2019: Oscilliscope pictures of SHMS trigger Log Entry.
  • Feb 9 2019: Oscilliscope pictures of Coin trigger Log Entry.
    • TRIG6 has SHMS Hodo 3of4 width of 60ns && HMS Hodo 3of4 width of 60ns.
  • Feb 9 2019: TRIG5 could possibly Coin SHMS HODO 3of4 && HMS EL_CLEAN Log Entry.
  • Mar 5 2019: DAQ reverted back to CSV and KAONLT setup Log Entry.


Dec 2019

  • Dec 6 2019 : Trigger setup for the A1N/D2N experiments Log entry
    • SHMS Noble gas cerenkov in EL_REAL/EL_CLEAN trigger
    • STOF was removed from the SHMS/HMS EL_REAL trigger.
    • SHMS/HMS reference is now just the HODO 3of4.
  • The HMS triggers (when HMS single DAQ mode):
    • Trig1= HODO 3of4
    • Trig2 = EL_REAL
    • Trig3 = El_CLEAN
  • The SHMS triggers:
    • Trig1 = SHMS HODO 3of4
    • Trig2 = SHMS EL_REAL
    • Trig3 = SHMS El_CLEAN
  • Dec 11 2019 : Corrected the tirgger mask for SHMS TRIG3 show it is an SHMS event type. Log entry
  • Dec 12 2019 : Oscilliscope pictures of SHMS trigger Log entry.
  • Dec 12 2019 : Oscilliscope pictures of HMS trigger Log entry.