Difference between revisions of "Run Group A"

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<!--#######################################  SHORT TERM  ################################################-->
 
<!--#######################################  SHORT TERM  ################################################-->
 
<center><font color=blue size=4>
 
<center><font color=blue size=4>
−
''' CLAS12 Engineering Run, Winter 2018 </font> '''<br>
+
''' CLAS12 Rungrou A Run, Winter 2018 </font> '''<br>
 
''' Beam energy 10.6 GeV (5 pass) '''<br>
 
''' Beam energy 10.6 GeV (5 pass) '''<br>
 
''' Important: Document all your work in the logbook! '''<br>
 
''' Important: Document all your work in the logbook! '''<br>
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</center>
 
</center>
  
−
== RC: Raffaella De Vita ==
+
== RC: Daniel S. Carman ==
 
* (757) 575-7540   
 
* (757) 575-7540   
 
* 9 575 7540 from Counting Room
 
* 9 575 7540 from Counting Room
−
* devita@jlab.org
+
* carman@jlab.org
  
 
== PDL: Eugene Pasyuk ==
 
== PDL: Eugene Pasyuk ==
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* 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 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=0.0 mm)
+
* 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.
  
 
{| {{TableStyle1}}  
 
{| {{TableStyle1}}  
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== <font color=blue>''' Run Plan:'''</font>==
 
== <font color=blue>''' Run Plan:'''</font>==
−
''(last update 1/24 - 11:00 pm)''
+
''(last update 2/3 - 16:30)''
 +
 
 +
All studies will take data at 100% torus field (negatives inbending) and 100% solenoid field (positive polarity on supply). The beam position should be as indicated above. Make sure FSD thresholds are set correctly for whatever current is selected (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.
 +
 
 +
<!-- * 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 [https://wiki.jlab.org/clas12-run/images/e/e3/Estab_beam.pdf]. 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 [https://wiki.jlab.org/clas12-run/images/e/e3/Estab_beam.pdf]. 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. -->
 +
* Take data with PROD/elec_htcc_1phe_pcal_300.trg at 35 nA; 2 hr long runs.
 +
* Complete DC R2 performance study:
 +
** With setting #10, increase current from 5 nA to the point when the chambers begin to trip and cannot be reset
 +
** Take 30 min runs using PROD/elec_htcc_1phe_pcal_300.trg with thr=-45, -60, -65, -70, -75 mV at a beam current of 30 nA (lower beam current if trips are a problem)
 +
** Restore DC R2 to nominal HV setting #9
 +
* Take data with PROD/elec_htcc_1phe_pcal_300.trg at 35 nA; 2 hr long runs.
 +
* Continue trigger development studies. This work will be led by the trigger/DAQ experts.
 +
<!--* Take data to test the FT+hadron trigger performance. Use PROD_noVTP/hadron_elec_htcc_1phe_pcal_300.trg. Take 30 minutes of data per setting.-->
  
−
*<s> Continue data taking at 60% field (negatives inbending) and solenoid to 60% field:
+
* Hall B work for Monday:
−
** Production: 5 nA beam current on LH2 target, DAQ configuration PROD (selected by clicking on Configure before the Download), trigger file tr_electron.trg (selected at the Download), beam position as indicated above; Take 2 hours runs until 5 pm.
+
** Ramp down solenoid (torus can stay up) (RC)
−
* At 5pm, empty the target and take a run in the same configuration as before until beam will be terminated for the pass change to 10.6 GeV.
+
** Complete shielding addition outside scattering chamber (Hall B Engineering)
−
* While taking data, monitor routinely trigger scalers (make sure all bits in the first column of the table are non-zero, see https://logbooks.jlab.org/entry/3518829 as an example), live time, monitoring histograms, CED, detector scalers.
+
** Restore beamline (Hall B Engineering)
−
* When the pass change will start:
+
** Replace FT-Hode mezzanine board (N. Zachary)
−
** Ask MCC to ramp the tagger magnet up to prepare for beam tuning.
+
** Work on DC cable swaps (M. Cook + M. Mestayer)
−
** Contact the RC to ramp the solenoid to full field.
+
** Work on vacuum gauge (D. Anderson)
−
** Before asking for beam, turn sensitive detectors off including trackers (SVT, MVT, FTT, DC), Central Detectors (CTOF, CND), FTOF and RICH: refer to the manuals or call the experts for any questions.</s>
+
** Investigate polarity of busy signal (S. Boyarinov)
−
* Prepare to re-establish beam following the "Establish-physics quality beam" procedure at [https://wiki.jlab.org/clas12-run/images/e/e3/Estab_beam.pdf]. Refer to the 10.6 GeV harp scans of January 12 (https://logbooks.jlab.org/entry/3511621, https://logbooks.jlab.org/entry/3511611). Call the beamline expert when you have beam on the tagger yoke.
+
** Setup gated/ungated scalers and clock scalers (S. Boyarinov)
−
* Once beam tuning to the tagger yoke is complete and before degaussing the tagger magnet, perform Moller runs as established by the beamline expert.
+
** SAF111 walkthrough (E. Pasyuk)
−
* Proceed to tune beam to the Faraday Cup. Refer to previous harp scans at https://logbooks.jlab.org/entry/3511697, https://logbooks.jlab.org/entry/3511694 and https://logbooks.jlab.org/entry/3511692.
+
** Pass change (5-pass to 3-pass)
−
* Adjust the beam position to have uniform rates on the FT calorimeter. Record these positions and inform MCC these are now our nominal.
 
−
* Make sure FSD thresholds are set correctly for the specific beam current used in the following runs, integration time is set to 5 ms, and that the orbit locks are on.  
 
−
* Once beam is tuned to the FC, switched all detectors on. Call the SVT expert to switch the SVT on. Restore DC HV setting to be (8,9,9) for Region 1, 2 and 3, respectively. Make sure that the voltage for all channels comes up at the set values and no channels are off.
 
−
* When hall C target cooldown is complete, call the RC to ramp the torus to full field.
 
−
* Start an empty target run: DAQ configuration PROD (selected by clicking on Configure before the Download), trigger file tr_electron.trg (selected at the Download), beam position as indicated above; consult with the RC to establish the appropriate beam current. Take 2 hours runs.
 
  
 
<!-- == <font color=blue>''' Beam Tuning:'''</font>==
 
<!-- == <font color=blue>''' Beam Tuning:'''</font>==

Revision as of 14:05, 4 February 2018

[edit]
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 Rungrou A 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: Daniel S. Carman

  • (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.
  • 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 2/3 - 16:30)

All studies will take data at 100% torus field (negatives inbending) and 100% solenoid field (positive polarity on supply). The beam position should be as indicated above. Make sure FSD thresholds are set correctly for whatever current is selected (refer to instructions in the "Establish-physics quality beam" procedure at [1]), integration time is set to 5 ms, and that the orbit locks are on.

  • Take data with PROD/elec_htcc_1phe_pcal_300.trg at 35 nA; 2 hr long runs.
  • Complete DC R2 performance study:
    • With setting #10, increase current from 5 nA to the point when the chambers begin to trip and cannot be reset
    • Take 30 min runs using PROD/elec_htcc_1phe_pcal_300.trg with thr=-45, -60, -65, -70, -75 mV at a beam current of 30 nA (lower beam current if trips are a problem)
    • Restore DC R2 to nominal HV setting #9
  • Take data with PROD/elec_htcc_1phe_pcal_300.trg at 35 nA; 2 hr long runs.
  • Continue trigger development studies. This work will be led by the trigger/DAQ experts.
  • Hall B work for Monday:
    • Ramp down solenoid (torus can stay up) (RC)
    • Complete shielding addition outside scattering chamber (Hall B Engineering)
    • Restore beamline (Hall B Engineering)
    • Replace FT-Hode mezzanine board (N. Zachary)
    • Work on DC cable swaps (M. Cook + M. Mestayer)
    • Work on vacuum gauge (D. Anderson)
    • Investigate polarity of busy signal (S. Boyarinov)
    • Setup gated/ungated scalers and clock scalers (S. Boyarinov)
    • SAF111 walkthrough (E. Pasyuk)
    • Pass change (5-pass to 3-pass)

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


Clas12design.png

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