Run Group B

[edit]

• 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 BAND Beamline CND Cryo-Target CTOF DAQ DC ECAL FT FTOF HTCC LTCC MVT MVT turn on procedure RICH: expert novice Slow Controls Solenoid Power-Up and Power-Down Procedure SVTTo switch on SVT see SVT short Torus Power-Up and Power-Down Procedure

Procedures Establishing Physics-Quality Beam Performing Møller Runs Performing Harp Scans Tunnel/Hall Access DAQ Quick Reference/Recovery

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

RC schedule Nov 20 - Nov 27: S. Stepanyan Nov 27 - Dec 4: M. Contalbrigo Dec 4 - Dec 11: D. Sokhan Dec 11 - Dec 19: S. Niccolai Jan 7 - Jan 15: J. Gilfoyle Jan 15 - Jan 22: V. Kubarovsky Jan 22 - Jan 29: B. McKinnon

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 B, December 2019 - January 2020
Beam energy ~10.4 GeV (5 pass)
Important: Document all your work in the logbook!

RC: Daria Sokhan

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

PDL: Maurizio Ungaro

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

Run Plan: December 6 - 7 Take production data! Runs of 200 M events (~3h each if good beam). DAQ config: PROD67 (for runs written to tape and deleted from disk), PROD67_PIN (for runs which need to be kept on disk for immediate access) Trigger file: rgb_outbending_v12_1.trg Nominal current: 40 nA Compare the monitoring histograms from clas12mon to the reference and troubleshoot as needed. When stopping a run, enter the requested current in the pop-up window and put relevant comments -- please label junk runs. Please also keep a record of run numbers and their conditions in the shift summary. Keep an eye on SVT current strip chart for B_SVT_HV_R3T (second from bottom, green): it should not rise too much (see logbook entry [1]). If SVT trips, follow SVT reset procedures. If it does so frequently, call SVT expert (Yuri Gotra). At the end of each run, follow the STANDARD DAQ RESTART SEQUENCE This needs to be followed at the end of every run. Note: this might be different from the instructions coming up on RunControl. "end run", "cancel", "reset" 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 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: (last update 12/4/2019- 17:00) Nominal Beam Positions 2H01, X: +1.5 mm, Y: -1.0 mm 2C21, X: -0.2 mm, Y: -0.25 mm 2C24, X: -0.3 mm, Y: -0.8 mm FSD Thresholds Upstream: 2000 Hz Midstream: 2000 Hz Downstream: 700000 Hz BOM: 60000 Reference Harp Scans for Beam on Faraday Cup: 2C21 [2], 2C24 [3], 2H01 [4] Reference Monitoring Histograms (40 nA, production trigger) [5] 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. Beamline vacuum: should be not higher than 5e-5.

General Instructions: 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 30 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. If the phone is not answered, try the "Page Experts" button on top of CLASCSS. Check for and read any comments to log-book entries made during your shift! 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. 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. Run the script btaGet.py to print for you the correct BTA info for this hour -- edit the values on the BTA page if they are wrong! Upload spectra from clas12mon at begin and end of shift and cross-check with reference spectra Reset clas12mon every ~2 hours and inspect spectra. Fill and submit the shift checklist in the logbook Monitor the SVT Slow Controls status, post plot of current stability in the HBSVT elog once per shift. Every Run: Check values at the start of every run and log screenshots of: Main scaler GUI display Trigger rate GUI Beam strip charts FTC scalers At the start and end of every run, check that the data filled in the database run list is correct (especially fields which are filled in manually, like beam current and comments). This replaces the previously-used spreadsheet. When checking the ECAL response, make sure to look at the histograms for each sector by using the sector buttons at the bottom of the clas12mon window - if adcecal* or/and adcpcal* ROC crashes, there will be no alarm and the histograms are the way to notice this issue. Same holds for FTOF.

Notes / Troubleshooting :

FTOF HVs: The goal is to minimize the number of power cycles of the dividers.

• • OFF during: initial beam tuning to the Faraday Cup after CLAS12 has been off for a long shutdown, during a Moller run, harp scans, or if there is tuned/pulsed beam in the upstream beamline.
  • ON after an initial beam tune has been established and if there are only minor steering adjustments and “tweaks” being made.
  • If in doubt, call FTOF expert

Torus and/or Solenoid Fast Dump

• 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

Beam to the Faraday Cup: Fast Shut Down elements

• Upstream, Midstream, Downstream, BOM, and Solenoid FSD elements should always be in the state UNMASKED
• No changes to the FSD threshold should be made without RC or beamline expert approval

Turning MVT off: do not press "All HV OFF". 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

CND CAMAC crate switch on / reboot:

If CAMAC crate (camac1) holding CND CFD boards is switched off for any reason, always reset the associated CND CFD thresholds by typing, from any clon machine terminal:

$CODA/src/rol/Linux_x86_64/bin/cnd_cfd_thresh -w 0

If this command is failing and the crate is not responding, reboot it as follows: roc_reboot camac1

Solutions for common SVT issues: see [6]

RICH recovery procedures: [7]

To be followed in case of:

1. DAQ crash: rich4 is not responding or
2. RICH alarms (LV,missing tile, temperature, etc).

If it does not work or you are uncertain about what to do, contact the RICH expert on call. Please note that missing tiles typically occur due to lost communication. Keep in mind that the recovery procedure will kill DAQ. If DAQ is running for purpose other than data taking (for which the RICH acceptance is important) do not initiate the recovery procedure. The most critical parameter for the RICH is the temperature of the photosensors. If the temperature rises above limits, an interlock will automatically turn the RICH HV and LV off. If this happens, notify the expert on call and keep taking data without RICH.

Observed asymmetry in FTCal ADC Scalers

When running at low current (<10 nA), FTC asymmetries can be affected by hot channels. If large asymmetries are detected in those conditions, cross check with other detectors (BOM rates, DC occupancies) before taking further action.

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 WebOPI (CUE Login)

Runs and Coooking Info Google Spreadsheet Run list Run list of decoded and cooked files (auto updating every 30m) Run list with decoding and cooking software version/condition

December 2019 - January 2020 Run

Winter 2019 Run

mini-Spin dance

mini-Spin dance

Hall-B Operation Safety Procedures RCDB Run Group B Wiki CLAS12 mon page Comparison of current mon12 histos (second column) to a reference set of histograms (first column) and mon12 histograms (last 5 runs in last columns) Accumulated datasize Accumulated charge Run lists RGB Winter 19 run list RGB Fall 19 run list

Accelerator Accelerator Whiteboard Program Deputy Shift Plans Run Coordinator Reports Accelerator daily meetings notes (by Mauri) [8]

Bluejeans meetings Daily Run meeting 230805731 Weekly RGB meeting 237353330