Difference between revisions of "Engineering Run"

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(Short Term Schedule)
(Short Term Schedule)
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* Once trigger studies are completed, resume data taking at 100% torus field (negatives inbending) and solenoid to 100% field, beam position as indicated above. Make sure FSD thresholds are set correctly (refer to instructions in the "Establish-physics quality beam" procedure at [https://wiki.jlab.org/clas12-run/images/e/e3/Estab_beam.pdf]), integration time is set to 5 ms, and that the orbit locks are on.  
 
* Once trigger studies are completed, resume data taking at 100% torus field (negatives inbending) and solenoid to 100% field, beam position as indicated above. Make sure FSD thresholds are set correctly (refer to instructions in the "Establish-physics quality beam" procedure at [https://wiki.jlab.org/clas12-run/images/e/e3/Estab_beam.pdf]), integration time is set to 5 ms, and that the orbit locks are on.  
 
<!--** DC threshold test: ask the DAQ expert to set the DC Region 2 thresholds to 60 mV and take one run (1 h) at 30 nA with elec_htcc_1phe_pcal_300.cnf trigger. Once completed, reverted to the nominal threshold of 45 mV.-->
 
<!--** DC threshold test: ask the DAQ expert to set the DC Region 2 thresholds to 60 mV and take one run (1 h) at 30 nA with elec_htcc_1phe_pcal_300.cnf trigger. Once completed, reverted to the nominal threshold of 45 mV.-->
** 75 nA. 10M events with DC in the trigger: DAQ configuration PROD_noVTP, trigger file dc_elec_htcc_1phe_pcal_300.trg
+
** <s>75 nA. 10M events with DC in the trigger: DAQ configuration PROD_noVTP, trigger file dc_elec_htcc_1phe_pcal_300.trg</s>
** 75 nA. 10M events without DC in the trigger: DAQ configuration PROD_noVTP, trigger file dcno_elec_htcc_1phe_pcal_300.trg
+
** <s>75 nA. 10M events without DC in the trigger: DAQ configuration PROD_noVTP, trigger file dcno_elec_htcc_1phe_pcal_300.trg</s>
** 30 nA. 10M events with DC in the trigger: DAQ configuration PROD, trigger file dc_elec_htcc_1phe_pcal_300.trg
+
** <s>30 nA. 10M events with DC in the trigger: DAQ configuration PROD, trigger file dc_elec_htcc_1phe_pcal_300.trg</s>
** 30 nA. 10M events without DC in the trigger: DAQ configuration PROD, trigger file dcno_elec_htcc_1phe_pcal_300.trg
+
** <s>30 nA. 10M events without DC in the trigger: DAQ configuration PROD, trigger file dcno_elec_htcc_1phe_pcal_300.trg</s>
 
** 10 nA. 1M events with DC in the trigger: DAQ configuration PROD, trigger file dc_elec_htcc_1phe_pcal_300.trg
 
** 10 nA. 1M events with DC in the trigger: DAQ configuration PROD, trigger file dc_elec_htcc_1phe_pcal_300.trg
 
** 10 nA. 1M events without DC in the trigger: DAQ configuration PROD, trigger file dcno_elec_htcc_1phe_pcal_300.trg
 
** 10 nA. 1M events without DC in the trigger: DAQ configuration PROD, trigger file dcno_elec_htcc_1phe_pcal_300.trg

Revision as of 07:22, 31 January 2018

[edit]
Person Phone Number
Run Coordinator 9-757 575-7540 (cell)
Physics Division Liaison 9-757 876-1789 (cell)
Run Group C coordinator 9-757 639-6640 (cell)
Shift Expert 5244 or 9-757 329-4846 (cell)
Shift Worker 5126
MCC-OPS 7048
Crew Chief 7045
Crew Chief 9-757 876-3367 (cell)
Program Deputy 9-757 876-7997 (cell)
Engineering on-call 9-757 748-5048 (cell)
Engineering on-call secondary 9-757 897-9060 (cell)
Radcon (needed for target cell swaps) 9-757 876-1743 (cell)
Gate House Guard 5822
Location Phone Number
Hall-B Floor 5165
Hall-B Space Frame 5170, 5171
Hall-B Forward Carriage 5371
Hall-B Counting Room 5245 (Shift1), 5126 (Shift2)
Hall-B Counting Room 5244 (Expert)
Hall-B Gas Shed 7115
System Phone Number On-Call Person
DC (757) 748-5048 (cell) Engineering On-Call
SVT + MM (757) 541-7539 (cell) Yuri Gotra Primary
SVT + MM (757) 753-7769 (cell) Rafo Paremuzyan (secondary)
ECAL (757) 810-1489 (cell) Cole Smith
FTOF/CTOF (757) 344-7204 (cell) Jose Carvajal
CND (757) 344-7204 (cell) Jose Carvajal
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) Valery Kubarovsky
DAQ (757) 232-6221 (cell) Sergey Boiarinov
Slow Controls (757) 748-6922 (cell) Nathan Baltzell
Beamline (757) 303-3996 (cell) Eugene Pasyuk
Pol. Target On-Call (757)-218-2266 (cell) See schedule or call RC
Polarized Target (757) 746-9277 (cell) Chris Keith
Polarized Target (757) 897-1415 (cell) James Maxwell
Polarized Target (757) 871-5374 (cell) James Brock
Target (not used) (757) 822-9586 (cell) Bob Miller Primary
Target (not used) (757) 897-9060 (cell) Denny Insley Secondary
Counting House C x6000
Counting House D x5504

In case of a problem with superconducting magnets call Engineering on-call first, particularly if it is related to cryo.
For all other superconducting magnet problems call magnet group.
Their schedule and phone numbers are posted on the wall next to the Saclay target computer.




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


CLAS12 Engineering Run, Winter 2018
Beam energy 10.6 GeV (5 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: Raffaella De Vita

  • (757) 575-7540
  • 9 575 7540 from Counting Room
  • devita@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.
  • Note 2: At the end of each run, follow the DAQ restart sequence "end run", "abort", "reset", "download", "prestart", "go". After DAQ prestart is complete reboot the scaler IOCs with the command: iocjscalerRestartAll.sh. Note: 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: 2C21 (X=0.0 mm, Y=0.0 mm), 2C24 (X=0.0 mm, Y=0.7 mm), 2H01 (X=0.3 mm, Y=-0.6 mm)
  • Note 4: With beam to the Faraday Cup, typical rates an all halo counters upstream from the target should be either 0 or of the order of few counts. Count rates in the range of tens or more may indicate bad beam tune or bleed-through from other Halls.

Run Plan:

(last update 1/30 - 12:30 pm)

  • Prepare for beam tuning to the tagger yoke: SVT (contact expert to do it), MVT, CND, CTOF, FTT, HTCC, DC, FTOF should be off, tagger magnet should be on. Follow the instructions in the "Establish-physics quality beam" procedure at [1]. Compare harp scan to the ones performed on 1/25 swing shift (https://logbooks.jlab.org/entry/3520873 and https://logbooks.jlab.org/entry/3520881). Consult with the beamline expert in case of issues.
  • If beam profiles at the tagger are acceptable, move to beam tuning to the Faraday Cup. Again, refer to the instructions in the "Establish-physics quality beam" procedure at [2]. Compare harp scan with the one from 1/25 swing shift (https://logbooks.jlab.org/entry/3520947).
  • Once beam to Faraday Cup is established, prepare to start data taking. Switch on all detectors; contact expert to switch on SVT. Start trigger studies following instructions from the DAQ expert.
  • Once trigger studies are completed, resume data taking at 100% torus field (negatives inbending) and solenoid to 100% field, beam position as indicated above. Make sure FSD thresholds are set correctly (refer to instructions in the "Establish-physics quality beam" procedure at [3]), integration time is set to 5 ms, and that the orbit locks are on.
    • 75 nA. 10M events with DC in the trigger: DAQ configuration PROD_noVTP, trigger file dc_elec_htcc_1phe_pcal_300.trg
    • 75 nA. 10M events without DC in the trigger: DAQ configuration PROD_noVTP, trigger file dcno_elec_htcc_1phe_pcal_300.trg
    • 30 nA. 10M events with DC in the trigger: DAQ configuration PROD, trigger file dc_elec_htcc_1phe_pcal_300.trg
    • 30 nA. 10M events without DC in the trigger: DAQ configuration PROD, trigger file dcno_elec_htcc_1phe_pcal_300.trg
    • 10 nA. 1M events with DC in the trigger: DAQ configuration PROD, trigger file dc_elec_htcc_1phe_pcal_300.trg
    • 10 nA. 1M events without DC in the trigger: DAQ configuration PROD, trigger file dcno_elec_htcc_1phe_pcal_300.trg
    • 5 nA. 1M events with DC in the trigger: DAQ configuration PROD, trigger file dc_elec_htcc_1phe_pcal_300.trg
    • 5 nA. 1M events without DC in the trigger: DAQ configuration PROD, trigger file dcno_elec_htcc_1phe_pcal_300.trg
    • Continue regular data taking with PROD/elec_htcc_1phe_pcal_300.cnf at 5 nA until 3 am; 2 hours long runs.
    • At the time, RICH studies will begin under the guidance of the RICH group. Use PROD6/elec_htcc_1phe_pcal_300.cnf at 50 nA. Continue until 5 am.
    • At the time, FT studies will begin under the guidance of the FT group. Ask for 5 nA, daq settings will be established by the FT group. Continue until 9 am.
  • Continue regular data taking with PROD/elec_htcc_1phe_pcal_300.cnf at 5 nA.


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.
  • All jscaler iocs (iocjscalerX) on the health screen (under DAQ tab) must be restarted after every DAQ prestart is completed.
  • Check that no unecessary 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.

Every Shift:

  1. Follow run plan as outlined by RC
  2. If any concern about beam stability, ask MCC if orbit locks are on (they should be).
  3. 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.
    • Fill and submit the shift checklist in the logbook
  4. Perform 2H01A harp scan once per shift or when beam conditions have changed, based on beam monitors (BPMs, halo rates, beam-viewer). During harp scans the HV for DC and HTCC should be OFF.

Every Run:

  1. Log screenshots of:
    • main scaler GUI display
    • Detector occupancy plots
    • Trigger rate gui
    • Beam strip charts


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