Spring 2018 Commissioning

Overview

Topics which are relevant to the DAQ/Trigger for the Spring 2018 commissioning run are discussed here.

To-Do

• High Priority
  • Configure Dave G. Dead time measurement scheme (Arrington’s and/or Morhings thesis)
  • Check HMS & SHMS hodoscope discriminator widths (50 ns, -30 mV)
  • ✔ Configure NGC into SHMS PID trigger leg in place of HGC
  • ✔ Sanity check SHMS hodoscope CAMAC power supply (noticed unstable behavior during end of fall run)
    • Brad's E-Log entry
  • ✔ Add SHMS PRSHWRSUM in trigger apparatus (FADC leaf)
  • ✔ Remove layer B from HMS pre-shower sum
  • Check all DC offsets for EACH linear FI-FO channel

• Medium Priority
  • Figure out DAC to mV conversion factor, find old talk regarding setting the DAC values to obtain pedestals a pre-determined value
  • Include multi-hit capability in the trigger apparatus for reference times
  • Integrate TI scalers into report files
  • Configure OR of hodoscope trigger logic into TDC’s and scalers
  • Change trigger leaf names to PRLO from PRSHWRLO etc. (needs to match xscaler)

• Low Priority
  • Add number of FADC error flags to the report files (front and center)
  • Add number of pulses identified in the window to data tree

DAQ/Trigger Run Plans

Single Arm & Coincidence Dead Time Studies

Run Conditions

• Kinematics that provide ~1.5 kHz at 1-5 uA in each spectrometer arm and coincidence mode
• EDTM on at 100 Hz
• These runs can be performed parasitically

Run Plans

• Single arm runs

1. 5 uA, ~1.5 kHz, ps1 = 0, ~10 min (900k events)
2. 10 uA, ~3.0 kHz, ps1 = 0, ~10 min (1.8 M events)
3. 20 uA, ~6.0 kHz, ps1 = 0, ~10 min (3.6 M events)
4. 40 uA, ~12.0 kHz, ps1 = 0, ~10 min (7.2 M events)
5. 60 uA, ~18.0 kHz, ps1 = 0, ~10 min (10.8 M events)

• Coincidence runs

1. 5 uA, ~1.5 kHz, ps6 = 0, ~10 min (900k events)
2. 10 uA, ~3.0 kHz, ps6 = 0, ~10 min (1.8 M events)
3. 20 uA, ~6.0 kHz, ps6 = 0, ~10 min (3.6 M events)
4. 40 uA, ~12.0 kHz, ps6 = 0, ~10 min (7.2 M events)
5. 60 uA, ~18.0 kHz, ps6 = 0, ~10 min (10.8 M events)

SHMS & HMS Mode 10 Runs

Run Conditions

• At 1.5 kHz these runs should take ~5--10 min
• These runs can be performed parasitically

Run Plans

• SHMS Runs

1. Any kinematics, ~1M events, EDTM off
2. Any kinematics, ~1M events, EDTM on at 100 Hz

• HMS Runs

1. Any kinematics, ~1M events
2. Any kinematics, ~1M events, EDTM on at 100 Hz

Single Arm and Coincidence EDTM Studies

Run Conditions

• EDTM 10 Hz runs should be taken when the run lengths are > 30 minutes
• EDTM 100 Hz runs should be taken when the run lengths are < 30 minutes
• If short runs are being performed then the EDTM can be run at 1 kHz

These runs can be performed parasitically although folks will need to know how to cut the EDTM events out of the data

Run Plans

• SHMS Single arm EDTM runs at various rates

1. SHMS Run: Any kinematics, EDTM at 10 Hz
2. SHMS Run: Any kinematics, EDTM at 100 Hz

• HMS Single arm EDTM runs at various rates

1. HMS Run: Any kinematics, EDTM at 10 Hz
2. HMS Run: Any kinematics, EDTM at 100 Hz

• Coincidence EDTM runs at various rates

1. Coincidence Run: Any kinematics, EDTM at 10 Hz
2. Coincidence Run: Any kinematics, EDTM at 100 Hz

Trigger PID Threshold Scans

Run Conditions

• These runs can be performed parasitically in a kinematic with a equal pi:e ratio

Note: This can be done with a single 1M event run (15 min) and applying software cut on the FADC 'sum' value.

Run Plans

• SHMS PID threshold scan with NGC in trigger (HGC was previously utilized)

1. NGCER 10, PRSH-LO 10, PRSH-HI 10

• HMS PID threshold scan

1. CER 10, PRSH-LO 10, PRSH-HI 10, SH-LO 10

Single arm SHMS & HMS runs with EL-REAL and EL-CLEAN being readout (need to time these in at the TI front panel)

Run Conditions

• Runs should contain ~500k-1M events which at 1.5 kHz trigger rate will take 5--10 minutes per run
• These runs can be performed parasitically

Run Plans

• SHMS single arm multi-trigger type studies

1. Any kinematics, 500k events, EDTM off
2. Any kinematics, 500k events, EDTM on at 10 Hz

• HMS single arm multi-trigger type studies

1. Any kinematics, 500k events, EDTM off
2. Any kinematics, 500k events, EDTM on at 10 Hz