RC meeting and Run Plan, Wednesday December 14th

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RC Meeting Information

Current RC:		Eric King (turning over to Andrew)
Time:		Daily at 3:30PM
Location:		Counting House Conference Room

Remote Connection Details

• Join ZoomGov Meeting
• https://jlab-org.zoomgov.com/j/1619032184?pwd=aWhTVWxya1ZZQzA1K2ZPSTd2ZX...
• Meeting ID: 161 903 2184
• Passcode: 260715
• Dial by your location
• +1 669 254 5252 US (San Jose)
• +1 646 828 7666 US (New York)
• +1 551 285 1373 US
• +1 669 216 1590 US (San Jose)
• 833 568 8864 US Toll-free
• Find your local number: https://jlab-org.zoomgov.com/u/acj3pTicMx

Shift Schedule

Link to Schedule

Until Shutdown

All shifts are still full! :)

After Returning

There is a need for OWL shifters. Please encourage your students to take some owl shifts. A string of owl shifts are easier to do than doing one here and there.

• Silviu has signed up for a few OWL shifts since I made the screensnip.

Accelerator Status

Very minor disruptions on the accelerator side. Two ~25 minute downs between SWING and OWL. Events: 17477, 17478

Current Status

Taking production data on 3-He

Shift Summaries

• WEDNESDAY DAY SHIFT SUMMARY
• WEDNESDAY OWL SHIFT SUMMARY
• DON'S MOLLER MEASUREMENT SUMMARY
• TUESDAY SWING SHIFT SUMMARY

Moller Measurement

• Moller measurment during SWING

RUN	IWHP	TGT	POL	ERR
20047	IN	10um Fe	86.11%	0.15%
20048	IN	11um Cu	0.07%	0.17%
20049	OUT	11um Cu	-0.14%	0.16%
20050	OUT	10um Fe	-86.46%	0.15%

• Don's slides LINK

Beam Current

We've been happily running at 40uA when taking production data.

Target

Target polarization has been stable. List of the recent polarizations

• WED 07:20 → 42.1% 4101437
• WED 03:15 → 44.6% 4101278
• TUE 23:36 → 46.4% (End of Moller) 4101103

Issues remaining

• BB GEM APV unreachable and cannot be repaired at this time.

Short Term Run Plan

• Continue production run on He3 target, 40 uA
• Use GEnII-noSBSGEMs DAQ config
• Use ps3=0, ps5=6, others =-1
• BBCal threshold at -366 mV, HCal threshold at -19 mV
• NMR measurement every 3 - 4 hours, close to 4 hours is better

Planned Accesses to the Hall

None

Special Requests

None

Notices in Effect for Shift Crew

• Power down SBS, BB, and Detector HV before making an access to the Hall

Data Collection Status

• 79 out of 141 days (~56.0%)
• Total uncorrected accumulated charge on He3: 61.573 C out of 232C (26.54%)
  • 2-Pass: 13.467 C
  • 3-Pass: 48.106 C (Wednesday 8AM)