Run Group C

[edit]

• Shift Documentation
• Phone Numbers
• hort Term Schedule
• Shift Expert
• Remote Worker Shift
• Monitoring
• Useful Links

Shift Schedule Hall B Logbook ESAD, COO, RSAD Shift Checklist Hot Checkout Beam Time Accounting See guidance at BTA User Guide.

Manuals Polarized Target Manual See also the OSP - scroll down for the target description Raster Operations Manual - see also Raster Monitoring Manual DC FTOF ECAL LTCC HTCC RICH: Expert Shift CTOF CND SVT MVT MVT turn on procedure FT Beamline Torus Power-Up/Down Procedure Solenoid Power-Up/Down Procedure DAQ Slow Controls

Procedures Physics-Quality Beam Performing Møller Runs Performing Harp Scans Tunnel/Hall Access ESAD, COO, RSAD

JLab Logbooks MCC Hall-A Hall-B Hall-C Hall-D

NOTE: All NON-JLab numbers MUST be dialed with (757) area code. When calling from a CH landline, dial "9" first.

Role Phone Number Hall B Run Coordinator (757) 575-7540 (cell) Hall B Physics Division Liaison (757) 876-1789 (cell) MCC 7048 Crew Chief 7045 Crew Chief (757) 876-3367 (cell) Program Deputy (757) 876-7997 (cell) RadCon (757) 876-1743 (cell) Gate House Guard 5822 Location Phone Number Hall B Floor 5165 Hall B Space Frame 5170 and 5171 Hall B Forward Carriage 5371 Hall B Gas Shed 7115 Hall B Counting House 5244 (Shift Expert) Hall B Counting House (757) 329-4846 (Shift Expert cell) Hall B Counting House 5245 or 5126 (Shift Worker) Hall A Counting House 5501 Hall C Counting House 6000 Hall D Counting House 5504

Hall B System Phone Number On-Call Person Engineering (757) 748-5048 (cell) (757) 897-9060 (cell) Engineering On-Call (primary) Denny Insley (secondary) Slow Controls (757) 748-6922 (cell) Nathan Baltzell Beamline (757) 303-3996 (cell) Eugene Pasyuk DC (757) 218-4372 (cell) (757) 748-5048 (cell) Florian Hauenstein (primary) Engineering On-Call (secondary) SVT/MVT/MM (757) 541-7539 (cell) (757) 753-7769 (cell) Yuri Gotra (primary) Rafo Paremuzyan (secondary) ECAL (757) 810-1489 (cell) Cole Smith FTOF/CTOF/CND (757) 344-7204 (cell) Daniel Carman ALERT (757) 329-4844 (cell) Raphael Dupré HTCC/LTCC (757) 344-7174 (cell) Youri Sharabian FT (757) 344-1848 (cell) Raffaella De Vita BAND (757) 310-7198 (cell) Florian Hauenstein RICH (757) 344-3235 (cell) (757) 748-6922 (cell) Christopher Dilks (primary) Nathan Baltzell (secondary) DAQ (757) 232-6221 (cell) Sergey Boiarinov HYDRA (317) 550-9226 (cell) Torri Jeske Authorized Hall B Solenoid/Torus Operators Hall B Denny Insley, Morgan Cook, Eugene Pasyuk Magnet Group Probir Ghosha, Renuka Rajput-Ghoshal Detector Support Group Brian Eng, Pablo Campero, Tyler Lemon DC Power Onish Kumar, Sarin Philip

• Note, all non-JLab numbers must be dialed with an area code. When calling from a counting-house landline, dial "9" first.
• To call JLab phones from outside the lab, all 4-digit numbers must be preceded by 757-269
• Click Here to edit Phone Numbers. Note, you then also have to edit the current page to force a refresh.

Click Here to edit Phone Numbers. Note, you then also have to edit the current page to force a refresh.

CLAS12 Run Group C, Summer 2022

Daily RC Meetings at 14:00: CH Room 200C, and on Zoom

Zoom information: Link, Meeting ID: 160 867 4253, Passcode: 786506

RC: Sebastian Kuhn

• 757 575-7540 or
• 757 639-6640
• Dial "9" before all numbers when calling from CH

PDL: Eugene Pasyuk

• (9-)757 876-1789 , x6020 office

Run Coordinator and Target Expert Schedule

Longterm Run Plan

IMPORTANT NOTE: Before leaving the hall and going to beam permit check that dome lights, forward carriage lights, and pie tower lights are OFF

Run Plan: June 2022

• Tue, 6/7: Complete beam line; Hall closes up at 3:00 for beam line magnet tests
• Wed, 6/8: Finish all surveys and alignments, calibrate BPMs. Test target samples (TE, polarize). Check out raster.
• Thu, 6/9: Continue HCO for all components, target polarization / swap tests. Install cross-hair target probe for beam. If ready, close Hall and get ready for beam. (No LHe in target)
• Fri, 6/10: If possible, tune 1-pass beam to FC.
  • Establish beam following "Physics-Quality Beam" Procedure under "Shift Documentation" tab.
  • Begin commissioning and raster calibration:
    • Center beam on target, using rates in downstream beam monitors. Establish wire positions (2H01 x and y). Center beam on target and turn on orbit lock on 2C24.
    • Follow Raster Manual under "Shift Documentation" tab to calibrate raster settings.
    • Turn on rastering and check all alarms and interlocks.
    • Swap to empty target. Take one run (no LHe) to determine nominal beam center position relative to DC. Move beam to find the target cell edges. Finalize raster setup and set CCDB parameters.
    • Swap to 12C target. Do a current scan to determine optimum combination of raster size and luminosity.
    • Complete other calibration runs as requested: DC HV, BMT HV, TOF.
• Weekend: Take data with MT, 12C and polarized NH3 targets.
• Early next week: If time allows, take data on CH2, CD2 and polarized ND3.
• Then change from 1-pass to 5 pass.

1-pass (2.1 GeV) Running conditions

• Torus at 50% current, inbending electrons.
• Establish optimal compromise between raster size (if possible, 7 mm radius), luminosity (goal: 5 nA), and background.
• Run duration 100M events or 4 hours, whichever comes first.
  • For empty target runs, increase beam current as much as possible (up to 50 nA).

DAQ configuration

• Configuration TBA, trigger file rgc_100MeV_V1.0_no_DC.trg
• NOTE: UNLESS a RICH problem crashes the DAQ, do NOT interrupt an otherwise smooth run to do a RICH recovery - instead do this in between runs.
• NOTE: BOTH the shift expert AND the shift worker MUST check monitoring histograms at least once every 30-60 minutes to make sure there are no major detector problems.Watch the raster pattern!
• At the end of each run, follow the STANDARD DAQ RESTART SEQUENCE:
  • "end run", if the run ended correctly then: "prestart", "go"
  • if the run did not end correctly or if any ROCs had to be rebooted:
    • "cancel", "reset"
    • "configure", "download", "prestart", "go"
• After each step, make sure it is completed in the Run Control message window. If a ROC has crashed, find which one it is, issue a roc_reboot command ON JUST THAT ROC and try again. Contact the DAQ expert if there are any questions.

References and Standards

Solenoid set-point of 2417.5 A results in read back 2419.57 A and exactly 5.00 T field on center

Nominal Beam Positions

• 2H01, X: ? mm, Y: ? mm (only used/useful without restoring)
• 2C24, X: -? mm, Y: ? mm (orbit lock)

FSD Thresholds (to be updated)

• Upstream: 2000 Hz
• Midstream: 2000 Hz
• Downstream: 500000 Hz
• BOM: 10000
• 5 ms dwell time

Reference Harp Scans for Beam on Faraday Cup 2H01 [1]

Reference Harp Scans for Beam on Tagger dump 2C21 [2], tagger harp [3]

Reference Monitoring Histograms

Counter rates

• Upstream counters integrated rates: 0-15 Hz (acceptable up to 100 Hz are acceptable) @50 nA.
• Midstream counters: 10-20 Hz (acceptable up to 50 Hz) @50 nA.
• Counting rates of ~ hundreds of Hz may indicate bad beam tune or bleed-through from other Halls.

NOTE: BOTH the shift expert AND the shift worker MUST check monitoring histograms at least once every 30 - 60 minutes to make sure there are no major detector problems. Follow the [Short Term Schedule] as outlined by RC includes Run Plan, DAQ configuration, and References and Standards Keep shift summary up to date in HBLOG. Record all that happens. Do a RICH recovery (press the RICH Recovery button on the GUI) once daily during day shift, between runs. Please log in shift summary. Note the automated "RICH Recovery" sequence already confirms RICH4 is up and accepting ssh connections before claiming success. And it also prints out that you have to "Cancel->Reset->Configure->Download->Prestart" before starting the next run. Fill out BTA hourly. Click "Load from EPICS" to automatically fill the left side then correct as needed. Accelerator beam time: ABU: acceptable beam used (eg harp scans, calibrations, trigger settings, running) BANU: beam acceptable but not used (eg radiator change or our problems) BNA: beam not acceptable (eg tuning, drifting, not focused) Experiment beam time ER: experiment ready PCC: planned configuration change (when beam is masked while radiators are moved, DAQ (roc rebooting, restarting runs)), if more than 5 minutes, put a short comment, eg harp scans or DAQ. UED: unplanned experiment down (hardware failure) In case of other questions or uncertainties of what to do, call the RC or PDL (remote) shift worker: see dedicated Remote Shifts tab above.

Zoom for 24-7 communication with counting house: https://jlab-org.zoomgov.com/j/1619881100 Passcode REQUIRED: 927417 Remind the expert in the counting house to restart their zoom, if necessary Remote VNC connection instructions: https://logbooks.jlab.org/entry/3906039 All necessary applications should be avaible from the desktop menu (left/right click on the desktop) EPICS GUIs should be accessed ONLY via the desktop menu or by running clascss-remote. Remote Demonstration Video (150 MB) Tasks Every Run: With beam present, log screen shots of: Beamline Overview, in VNC or Web Browser CLAS12 Trigger rates and DAQ status upload monitoring plots (mon12) to logook look at the spectra: Reference, current, and 5 most recent runs, choose a reference run (the reference numbers refer to logbook entries): 6 GeV 80 nA on Ca48 https://clas12mon.jlab.org/mon12/histograms/?reference=3982817 6 GeV 90 nA on Sn https://clas12mon.jlab.org/mon12/histograms/?reference=3980929 ref 6 nA, production C, https://clas12mon.jlab.org/mon12/histograms/?reference=3973807 ref 50 nA, production LD2, https://clas12mon.jlab.org/mon12/histograms/?reference=3943458 Every Shift: Fill the shift checklist Log screen shots of RICH temperature and scaler maps. Log in HBLOG and RICH logbook. Regularly: reset & check spectra frequently (every 30 - 60 minutes) Some plots in mon12 have a choice of histogram sets per sector, select buttons at the bottom of the plot. Only the currently selected set ends up in the logbook entry. that means you have to look at all sectors for these histograms in Web Browser: Upstream/Midstream Halo Counters, Downstream Halo Counters, Beam Currents, BPM Positions

Backup shifter contact info Name Email Cell phone Bob Cat bob@cat.org John Doe johndoe@gmail.com

Webcams Tagger Beam Dump Viewer Hall Fisheye Faraday Cup beam viewer To reboot it, run beam-viewer-reboot Hall Cameras: Hall A, Hall B, Hall C, Hall D

Manuals CED Manual MON12 Manual RasterMon Manual off-line Manual

Epics on the web Hall B WebOPI (CUE Login) Accelerator

Live Monitoring Links CLAS12 Monitoring Timelines Live Charge Collected Plots Live Luminosity Collected Plots

Hall-B Operation Safety Procedures Run Group C Analysis Wiki RCDB CLAS12 mon page Comparison between mon12 histograms (last 5 runs)

Accelerator Accelerator Whiteboard Program Deputy Shift Plans Run Coordinator Reports Beam Time Accounting Reports

ZOOM meetings 07:45 RC/PD Morning Meeting 08:00 MCC/OPS Morning Meeting 14:00 Daily RC Meeting Zoom Link Meeting ID: 160 867 4253 Passcode: 786506 Meeting Agendae