Template:ShortTermSchedule-RGD

Run Coordinator: Susan Schadmand (757) 575-7540

PDL: Nathan Baltzell (9-)757 876-1789 , x5902 office

RG/Analysis Coordinator (AC): Lamiaa El Fassi (630) 605-4259

Daily RC/OA Meetings at 13:00 in CH Room 200C, and on ZOOM: URL Link (Meeting ID: 1611984219; Passcode: RGD-RC23), except on Wednesdays, which is on ZOOM ONLY @ 15:30 due to the conflict with the 13:30 MCC Scheduling/Planning meeting.

Important Notes

Do NOT change FSD settings without approval from RC or beamline expert!

• In case of medical or fire emergency, call 9-911 from a LANDLINE phone in the Counting House and inform the Crew Chief and RC.
• In case of evacuation of the Counting Room (e.g., due to a fire alarm in the Counting House), grab the shift expert phone, exit the room through its door to the outside. Do not go to the hallway! Call the RC from outside. RC will call MCC to take the beam away from Hall B and also will inform other Hall B staff members.

• If you have symptoms or a positive COVID test, do NOT come to your shift - instead, inform the PDL and the RC and JLab medical services immediately to arrange replacements.
• Remote shift: If needed, worker shifts can be taken from off-site. Inform the PDL and RC. Also, make sure that you follow the instructions under the "Shift Worker" tab as you need some lead time to set up!

• Note to shift takers, please:

◊ Read the logbook, be aware of previous 24 hours;

◊ Arrive at least 10 minutes early for shift change;

◊ Refresh the run wiki pages; look over them every shift:

- Follow the expert/worker shift instructions.

◊ Do not spend more than 15-20 min trying to fix a problem. With any issue, contact On-Call Experts or RC.

◊ Review these important links:

- Recent Changes and Current Issues

- General How-to for beam restoration procedures and Moller runs.

Run Plan, Nov. 7th - Sat., Nov. 11th, 2023 Continue production on CuSn target as follows: - Target: CuSn - Beam Blocker: IN - Beam current: 95 nA +/- 3nA on 2C21A - Run duration: 100 M events - DAQ configuration: PROD67 - Trigger file: rgd_out_v2.1_Q2_1.2.trg P.S.: If the beam is widely fluctuating above 95 nA, please ask MCC to narrow down the fluctuation margin and give us the required 95 nA +/- 3nA based on 2C21A reading. They could put the beam current lock on 2C21A in case that may help with the wide fluctuation as it's currently done. We will keep the beam blocker IN while using this target combination! Wednesday, Nov 8th, 2023: • Maintenance Day (Day shift) + Beam Studies (last portion of Owl shift): ◊ The beam will be taken away around 5 AM for beam studies. ◊ Hall B should be switched to controlled access; - No survey is needed; we will wait until the beacon stops flashing to perform any controlled access. ◊ The beamline expert, Eugene, will contact the counting house around 7 AM. He will bypass the solenoid interlocks and ramp down the solenoid field for the planned MVT work. ◊ Access requests (so far): - Around 10:30 AM: Maxime, Rafo, Yuri, et al.; - Cole Smith for Ecal/Pcal work; - 14:00: Eugene will perform walkthrough training for one(?) collaborator. • Swing Shift: MD Recovery: ◊ Beam restoration: Please review the General How-to link above for instructions on how to: - Establish the physics beam to the tagger dump; - Establish the physics beam to the Faraday Cup. ◊ If everything is fine, please insert CuSn back in the beamline along the beam blocker. Resume CuSn data-taking as follows: - Target: CuSn - Beam Blocker: IN - Beam current: 95 nA +/- 3nA on 2C21A - Run duration: 100 M events - DAQ configuration: PROD67 - Trigger file: rgd_out_v2.1_Q2_1.2.trg P.S.: If the beam is widely fluctuating above 95 nA, please ask MCC to narrow down the fluctuation margin and give us the required 95 nA +/- 3nA based on 2C21A reading. They could put the beam current lock on 2C21A in case that may help with the wide fluctuation as it's currently done. We will keep the beam blocker IN while using this target combination! Saturday, Nov. 11th, Owl Shift: • Ask MCC to turn the beam OFF to change the dual solid foils to CxC from the drop menu in the cryo-target GUI. For more details, please refer to the cryo-target and flag assembly: manual. Also, retract the Beam Blocker from the beamline. • Once done, resume data-taking on the CxC target as follows: - Beam current: 50 nA - Beam Blocker: OUT - Run duration: 100 M events - DAQ configuration: PROD67 - Trigger file: rgd_out_v2.1_Q2_1.2.trg Saturday, Nov. 11th, Day Shift: • Please call the engineering on-call to change the target position in the hall to the liquid target position around 10 AM, depending on the progress of the run, as the engineer needs roughly 20 min to be onsite. Please keep the run ongoing until the engineer arrives, even if it exceeds 100 M. • In parallel with rapid (controlled) access (if the beacon will stop flashing, otherwise, escorted access), change the solid flag assembly to "Empty" from the drop menu in the cryo-target GUI and start filling the LD2 cell. For more details, please refer to the cryo-target and flag assembly: manual. • Once the access is done and the cell is filled, ask for the beam and continue LD2 production as follows: - Beam current: 60 nA - Beam Blocker: OUT - Run duration: 100 M events - DAQ configuration: PROD67 - Trigger file: rgd_out_v2.1_Q2_1.2.trg DAQ Operation (New) STANDARD end of the run and the start of new run: - "End run" - "Abort" - "Download" - "Prestart" - "Go" RESTART DAQ when changing configuration or trigger files, or when the run did not end correctly, or when ROC(s) is(are) rebooted, or when RICH is FAST/Fully recovered, as follows: - "Cancel", "Reset" - "Configure" - "Download" - "Prestart" - "Go" Reference Values FSD Thresholds from RG-D Upstream: 2 kHz Midstream: 2 kHz Downstream: 100 kHz BOM: 50 kHz 5 ms dwell time Harp Scan References from RG-D 2H01 [1]; x= -1.4 mm; y= 0.0 mm Tagger (2C24A) [2]: x= -2.0 mm; y= +0.6 mm 2C21A [3]: x= -0.4 mm; y= +0.6 mm (less important; values form RG-C) IA for Q Asymmetry HWP IN: https://logbooks.jlab.org/entry/4194811 and https://logbooks.jlab.org/entry/4195453 HWP OUT: https://logbooks.jlab.org/entry/4195738 and https://logbooks.jlab.org/entry/4195733

General Instructions Data Acquisition: • Configuration is PROD66/67 (or PROD66_PIN for fast reconstruction of some calibration/reference runs from the cache disk); • In case of DAQ Disk space alarm, call the DAQ expert. • Trigger files: - Inbending production: rgd_inb_v1.0.trg - Outbending production: rgd_out_v2.1_Q2_1.2.trg with low-Q2 suppression • During Configure, observe the ROC terminals, you can see there whether a ROC has error messages. • Some ROCs keep printing error messages while functioning properly; please see their list in this logbook entry # 4215299 to avoid unnecessary reboot since the printout in the roc terminal won't change. In case anyone of them gets disconnected, the message will appear in the run control itself! • If a ROC has crashed, find which one it is (look for busy ROCs), end the current run, issue a roc_reboot command ON JUST THAT ROC, test with ssh that the roc is up (some take longer than others). Then, RESTART DAQ. • Unless a RICH problem crashes the DAQ, do NOT interrupt an otherwise smooth run for a RICH recovery. Instead, do this in between runs. • The shift MUST check and reset monitoring histograms at least once every 30-60 minutes to ensure no major detector problems. Sometimes, it is the only way to know that a specific roc needs to be rebooted. • Pop-up window: Enter the beam current and the type of runs (e.g., Production) in the "Comment" field. • After each step of a RESTART DAQ, ensure it is completed in the Run Control message window. Also during configure look for error messages in the roc terminals. • Contact the DAQ expert if there are any questions. Beamline: • Do not run over 30 minutes above 90 nA with a 5-pass beam without the beam blocker IN . The beam blocker must be IN for long-running at high currents for 5-pass operations. • If there is any concern about beam stability, ask MCC if orbit locks are on (they should be). • Document any beam condition change and send scaler GUIs to HBLOG. • If HWP is changed, start a new run: ◊ Please check with the beamline expert whether the SLM and FCUP charge asymmetry (Q-Asym (%)) readings are set properly as they will be out of range in case Eugene's script is not run by the experts after the HWP change. The absolute values should be less than 0.1%. At the start and end of every run, check that the data filled in the Run Condition Data Base (RCDB) is correct, especially the fields filled manually. For beam tuning and Møller runs • Make sure the SVT/MVT are set as follows: SVT: LV ON; HV OFF, and MVT: LV ON; HV ON in SAFE Mode. - When turning MVT OFF, do not press "BMT HV OFF" from HV->Overview->Actions, but instead select BMT HV ON - Safe Voltage. The same applies to FMT select FMT HV ON - Safe Voltage. - When turning MVT ON: go to HV->Overview->Actions, and select BMT (/FMT) "HV ON - Full Voltage". - DO NOT start runs in SAFE Mode for Production/Calibration/Various-Studies. • Turn DC HV off only for beam tuning; if no beam is available or when the beam is stable, keep them on even if you are not taking data. To access the Hall: • If you need to enter Hall B, alert Denny Insley (757-897-9060, cell/text: 757-810-9576) and the Run Coordinator (757-575-7540). • Check in with the shift personnel before entering the hall.