Run Group K

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• Shift Documentation
• Phone Numbers
• Short Term Schedule
• Monitoring
• Useful Links

Shift Schedule Shift Checklist Hot Checkout Beam Time Accounting See guidance for BTA in Beam Time Accounting User Guide.

Manuals DC FTOF ECAL LTCC HTCC RICH: expert novice CTOF CND SVT MVT MVT turn on procedure FT Beamline Torus Power-Up and Power-Down Procedure Solenoid Power-Up and Power-Down Procedure Cryo Target Operation manual DAQ Slow Controls

Procedures Establishing Physics-Quality Beam Performing Møller Runs Performing Harp Scans Tunnel/Hall Access

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

If calling local numbers (with area code prefix 757) from the counting room dial 9+[last 7 digits]. To call other area codes dial 91+[10 digit number]

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
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CLAS12 Run Group K, Fall 2018
Beam energy 7.5/6.5 GeV (4 pass)
Important: Document all your work in the logbook!
Remember to fill in the run list at the beginning and end of each run (clas12run@gmail.com can fill the run list)

RC: Volker Burkert

• (757) 575-7540
• 9 575 7540 from Counting Room
• carman@jlab.org

PDL: Eugene Pasyuk

• (757) 876-1789
• 9 876-1789 from Counting Room
• pasyuk@jlab.org

• Note 1: Be very mindful of the background rates in the halo counters, rates in the detectors, and currents in the SVT for all settings to ensure that they are at safe levels.
  • The integrated rates on the upstream counters have to be in the range 0-15 Hz (rates up 100 Hz are acceptable) and the rates on the midstream counters have to be in the range 10-20 Hz (acceptable up to 50 Hz) @50 nA. Counting rates in the range of hundreds of Hz may indicate bad beam tune or bleed-through from other Halls.

• Note 2: At the end of each run, follow the standard DAQ restart sequence :
  • "end run", "cancel", "reset", then if the run ended correctly, "download", "prestart", "go". If the run did not end correctly or if any ROCs had to be rebooted, "configure", "download", "prestart", "go".
  • After each step, make sure it is complete in the Run Control message window. If a ROC has crashed, find which one it is and issue a roc_reboot command and try again. Contact the DAQ expert if there are any questions.

• Note 3: Nominal beam positions: 2C21A (X= - 0.37 mm, Y=0.33 mm) , 2C24A (X=0.2 mm, Y=0.3 mm) , 2H01 (X=1.1 mm, Y=-2.0 mm)

• Note 4: Do not turn OFF FTOF HVs, even during the beam tune with CW beam (turn off when doing a Moller run or if there is tuned/pulsed beam in the upstream beamline)

• Note 5: In case of a Torus and/or Solenoid Fast Dump do the following:
  1. Notify MCC to request beam OFF and to drop Hall B status to Power Permit
  2. Call Engineering on-call
  3. Make separate log entry with copies to HBTORUS and HBSOLENOID logbooks. In the "Notify" field add Ruben Fair, Probir Goshal, Dave Kashy and esr-users@jlab.org
  4. Notify Run Coordinator
  5. Turn off all detectors

• Note 6: When beam is being delivered to the Faraday Cup:
  1. the Fast Shut Down elements: Upstream, Midstream, Downstream, BOM, and Solenoid should always be in the state UNMASKED
  2. No changes to the FSD threshold should be made without RC or beamline expert approval

• Note 7: Any request for a special run or change of configuration has to be approved by the RC & documented

• Note 8: Carefully check the BTA every hour and run the script btaGet.py to print for you what HAS TO BE in BTA for this hour. Edit BTA if it is incorrect.

• Note 9: Reset CLAS12MON frequently to avoid histogram saturation.

• Note 10: Shift workers must check the occupancies! Use this tool to compare to previous runs: https://clas12mon.jlab.org/mon12/histograms/

• Note 11: Do not Turn OFF MVT HV: Instead go to 'Restore settings' from the MVT overview screen:
  1. SafeMode.snp for beam tuning and Moeller runs
  2. MV_HV_FullField.snp for full solenoid field
  3. MV_HV_MidField.snp wgeb solenoid < 4T

• NOTE 12: Check the vacuum periodically, make sure vacuum is not higher than 5e-5

• NOTE 13: Always reset the CFD threshold after all power off/on on the CND CAMAC crate
  • If the CND CAMAC CFD crate (camac1) is switched off for any reason, it is mandatory to reset the thresholds via the command: $CODA/src/rol/Linux_x86_64/bin/cnd_cfd_thresh -w 0
  • If this command fails and the crate is not responding, reboot it as follows: roc_reboot camac1

• NOTE 14: To solve common SVT issues see SVT problem solving

• NOTE 15: To solve common RICH issues (missing tiles, DAQ crash due to rich4 crate etc) follow https://logbooks.jlab.org/entry/3562273

• NOTE 16: Every DAY shift do the RICH recovery procedure (between runs or better when accelerator is dead) described in https://logbooks.jlab.org/entry/3633487

• NOTE 17: CLAS12 is configured with FT-Off - Do not turn on LV or HV for any of the FT components (Cal, Hodo, Trk)

Run Plan: (Updated: Dec. 12, 2018 at 1:10 p.m.) When shifts are staffed and before beam is available contact the PDL to: Ramp the torus magnet to +100% (negatives outbending) Ramp the solenoid magnet to -100% When beam is available: Tune the beam in the upstream beamline to the tagger dump following the standard procedures using 5 nA (beamline expert will direct this work) Take a Moller run first with HWP IN and then with HWP OUT. If the polarization is >85% proceed with the program. If not contact the RC for direction. Degauss the tagger and tune the beam to the Faraday following the standard procedures using 5 nA (beamline expert will direct this work) Optimize beam positions at 2C21A, 2C24A, 2HO1 Update the reference harp scan links on the run wikipage (the RC should do this) Turn on all CLAS12 detectors (note that FT components should be left off as they are not used in this part of the run) Fill the hydrogen target Check detector rates and occupancies - Compare with previous values Start a data run with the nominal RG-K trigger for FT-Off (CODA Configuration: PROD66_NOFT, trigger file: rgk_v6_150MeV.trg) Record trigger rates, data volume, and occupancies for beam currents of 10 nA, 20 nA, 30 nA, 40 nA, 60 na, 75 nA (this should be a reasonably quick check) using the monitoring histograms and clearing them for the next beam current measurement(no need to stop/start DAQ). Make sure there are no beam trips when accumulating data in the histograms for sa given current setting. Do this only before 10pm and if it can be completed before swing shift ends. Optimize the trigger settings and threshold for the run (Valery Kubarovsky and RC). Select the current with ~ 4% occupancy in Region 1 drift chambers. Start DAQ and determine the trigger rate, data rate, and lifetime. If LT is less than 93% or data rate > 450MB end run, use trigger file rgk_v6_200MeV.trg and redo previous study continue with trigger file rgk_v6_250MeV.trg if needed, etc. Once data rate is within limits, end the study. Take a long run at 10 nA during the night until 8am. Consult the RC to determine the production running conditions. Take production data at the determined production running conditions. Notes: Once per day shift apply the RICH recovery procedure described in https://logbooks.jlab.org/entry/3633487 If beam is expected to be off for more than 1 hr turn DC HV off, wait 5 minutes, turn DC HV on again. Any questions or uncertainty about what to do please call RC Make sure to save ROC Rates (MB/s) GUI to logbook for each run together with beam screens and trigger GUI Make sure that the FSD thresholds are set correctly and they are unmask when ready to receive beam to the FC @40-50 nA Upstream 2000 Midstream 1000 Downstream 1000000 BOM 30000 Dwell time 5 ms Shift Worker Notes: If the machine is down for more than 30 min ask for low current first 5 nA ,make sure that the beam is stable both in position and current, check that the rates are OK on all the detectors and halo counters. Then ask for the nominal production beam current and continue data taking for production. If there are issues with the beam call RC. Sometimes MCC operator may ask to deliver tuned mode beam --- do not accept it. We need CW beam sent to the Faraday cup. If there is indeed a need for tuned beam, it should be sent to the tagger dump with the tagger magnet on. If you are uncertain, please call RC/PDL. In case of other questions or uncertainties of what to do, call the RC

General Instructions: For a given beam current, compute the FSD thresholds according to the Establish Physics Quality Beam document. Call MCC to update the values. Contact the beamline expert if there are questions about setting the FSD thresholds. The main lights in the Hall (dome lights) and the Forward Carriage lights are being kept off because of light leaks affecting some of the detectors. If these lights are switched on during an access, they should be switched off when leaving the Hall. Note that the dome lights when switched off cannot be turned back on immediately because they require 10-15 min to cooldown. Do not run more than 60 minutes above 30 nA with 5-pass beam without the beam blocker in front of Faraday cup. Put beam blocker in for long running at high currents for 5 pass operations. Turn DC HV off only for beam tuning; if no beam is available or when beam is stable, keep them on even if you are not taking data. In case of loss of communication with IOCBTARG, follow instructions at https://logbooks.jlab.org/entry/3502218 With any issue contact On-Call Experts or RC - do not spend more than 15-20 min trying to fix the problem. Check that no unnecessary beamline-related screens are open. This includes particularly the big beamline overview screen, but also and any motor/harp/collimator screens, and ioc health screens. Reference harp scans: 2C21, 2C24, 2H01 Every Shift: Follow run plan as outlined by RC If any concern about beam stability, ask MCC if orbit locks are on (they should be). Keep shift summary up to date in HBLOG. Record all that happens. Check on white board all scalers, strip charts and monitoring plots that need to be logged regularly Document any beam condition change and send scaler GUIs to HBLOG Fill out BTA hourly. Click "Load from EPICS" to automatically fill the left side. When you do BTA keep track of of BANU. Include at the end of shift summary log details of BANU: the reason and duration. Fill and submit the shift checklist in the logbook Every Run: Log screenshots of the following screens, and make sure at the moment you capture the screen the beam is ON main scaler GUI display Detector occupancy plots Trigger rate GUI Roc Rates (MB/s) GUI Statistics DAQ rates GUI Beam strip charts

Webcams Faraday Cup Beam Viewer Tagger Beam Dump Viewer CND CAMAC Crate Hall Fisheye Saclay Cryotarget

Manuals CED Manual MON12 Manual off-line Manual

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

Hall-B Operation Safety Procedures Engineering Run Wiki Engeineering Run Analysis Wiki Run Group A Analysis Wiki Run Group K Wiki RCDB CLAS12 mon page Comparison between mon12 histograms (last 5 runs) Accumulated datasize Accumulated charge Run lists RGK run list RGA run list ER run list

Accelerator Accelerator Whiteboard Program Deputy Shift Plans Run Coordinator Reports

Bluejean meetings [1] RGK RC meeting - no moderator passcode needed