Run Planning Meeting Notes, February 23 - February 28, 2023

Zoom connect Meeting ID: 160 199 0060 / Passcode 8394

MCC whiteboard

Hall D counting room white board

Spreadsheet with list of runs

Integrated Trigger Count

Wednesday March 1

Past 24 hours

• Production runs
• TAGM row-by-row scan

Shift Reports

Early riser Day Swing Owl

Reports

• CCAL check (Sasha)

Issues

• diagnosing problems in the TAGM readout (Richard)
  • TAGM row-by-row scan (Richard)
  • TAGM scalers using only row 4
  • turning off Vbias on rows 1-3 in TAGM (Richard)
  • Coherent peak after TAGM Vbias change

Plans

• Production (300 nA, 2h runs) with cycle:
  • 2 runs PARA (0/90)
  • 2 runs PERP (0/90)
  • 2 runs PARA (45/135)
  • 2 runs PERP (45/135)
  • 1 run AMO (use it to rejuvenate AMO reference in CBREM EPICS GUI)

Tuesday February 28

Past 24 hours

• Production runs
• Down during day shift due to SL dropping to restricted access twice

Shift Reports

Early riser Day Swing Owl

Reports

• NMR Probe Swap Out
• CCAL chiller

Issues

• A couple of instances of the DAQ not stopping properly, requiring a reset/restart of the DAQ, after shift crew responding to DIRC tile alarms.
• Some runs missing from rcdb, corresponding in time to extended down time
• FDCHit Wiretime- hot channel
• Higher than normal TAGM baseline level (Beni)
• Hot pixels in DIRC, Update (Justin)
• FCAL reset left base off briefly (Mark D.)

Plans

• Production (300 nA, 2h runs) with cycle:
  • 2 runs PARA (0/90)
  • 2 runs PERP (0/90)
  • 2 runs PARA (45/135)
  • 2 runs PERP (45/135)
  • 1 run AMO (use it to rejuvenate AMO reference in CBREM EPICS GUI)

Monday February 27

Past 24 hours

• Production runs

Shift Reports

Early riser Day Swing Owl

Issues

• There were multiple FCAL base lockups
• More on TAGM distribution
• Tagger NMR probe not working again (Hovanes)

Sunday February 26

Past 24 hours

• Production runs

Shift Reports

Early riser Day Swing Owl

Reports

• After coming back from the downtime due to the Hall-D dipole trip, the diamond needed to be realigned (thanks Hovanes for coming in to take care of this)
  • Checking alignment of JD70-103 50um diamond
  • PARA and PERP for 0/90 after realignment
  • PARA and PERP for 45/135 after realignment
  • Scan result for TAGM:A:scaler_r1_wf_total_vs_ HD:GONI:Y.RBV_vs_ HD:GONI:X.RBV
  • Snapshot from XY goni scan
• Initial checkout of newly installed CCAL (Sasha)

Issues

• CDC HV AI needed to be disabled
• Ratty TAGM distribution
• Same pending issues as before...

Plans

• Production (300 nA, 2h runs) with cycle:
  • 2 runs PARA (0/90)
  • 2 runs PERP (0/90)
  • 2 runs PARA (45/135)
  • 2 runs PERP (45/135)
  • 1 run AMO (use it to rejuvenate AMO reference in CBREM EPICS GUI)

Saturday February 25

Past 24 hours

• Beam came back at about 5:40 am Saturday morning after long downtime due to Hall-D dipole over-temperature trip.

Shift Reports

Early riser Day Swing Owl

Reports

• Further rho decay polarization results (Alex A.)
• CCAL installed in hall

Issues

• Same pending issues as before...

Plans

• Production (300 nA, 2h runs) with cycle:
  • 2 runs PARA (0/90)
  • 2 runs PERP (0/90)
  • 2 runs PARA (45/135)
  • 2 runs PERP (45/135)
  • 1 run AMO (use it to rejuvenate AMO reference in CBREM EPICS GUI)

Friday February 24

Past 24 hours

• Production runs
• Hall D dipole (ramp to tagger hall) trip due to over-temperature at about 21:47

Shift Reports

Early riser Day Swing Owl

Reports

• Two FCAL bases replaced (Mark D.)
• First look at 2023 beam polarization from rho decays (Alex A.)

Issues

• Pending:
  • Start Counter (Beni) - We do not understand why there is a mismatch in the software between start counter and tracking.
  • TAGH hot channels w/ no beam
  • Noise in FDC2 (Lubomir)
  • FCAL11 crate problems (Sergey)

Plans

• Completion of CCAL installation
• Production (300 nA, 2h runs) with cycle:
  • 2 runs PARA (0/90)
  • 2 runs PERP (0/90)
  • 2 runs PARA (45/135)
  • 2 runs PERP (45/135)
  • 1 run AMO (use it to rejuvenate AMO reference in CBREM EPICS GUI)

Thursday February 23

Past 24 hours

• Production runs
• Cosmic run in raw mode when beam was down: Run 120800

Shift Reports

Early riser Day Swing Owl

Reports

• New prototype in PS test stand: [1] (Sasha)
• CCAL ready for installation: [2] (Sasha)
• Accumulated statistics

Issues

• gluon04 spontaneously rebooted itself... which killed process providing main trigger rate to epics.
• DIRC LED Pulsers different from reference? -- midway through run.
• TAGM waveforms (Beni)
• Quality of coherent peak? Compare [3] from 2/15 and [4] from 2/22 and another for 45/135 perp: [5]

• Pending:
  • Start Counter (Beni) - We do not understand why there is a mismatch in the software between start counter and tracking.
  • TAGH hot channels w/ no beam
  • Noise in FDC2 (Lubomir)
  • FCAL11 crate problems (Sergey)

Plans

• Completion of CCAL installation: possible during MCC work in NL tomorrow morning ~8:30 for about an hour.
• Production (300 nA, 2h runs) with cycle:
  • 2 runs PARA (0/90)
  • 2 runs PERP (0/90)
  • 2 runs PARA (45/135)
  • 2 runs PERP (45/135)
  • 1 run AMO (use it to rejuvenate AMO reference in CBREM EPICS GUI)