Difference between revisions of "Run Group M"
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=== <font color=blue size=4> ''' CLAS12 Run Group M, Fall 2021 </font> ''' === | === <font color=blue size=4> ''' CLAS12 Run Group M, Fall 2021 </font> ''' === | ||
''' Beam energies: 2.1, 4.0, 6.0 GeV (1.96 GeV/pass) '''<br> | ''' Beam energies: 2.1, 4.0, 6.0 GeV (1.96 GeV/pass) '''<br> | ||
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=== RC: Susan Schadmand and Sebastian Kuhn === | === RC: Susan Schadmand and Sebastian Kuhn === | ||
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* 9 876-1789 from Counting Room | * 9 876-1789 from Counting Room | ||
* [mailto:vpk@jlab.org vpk@jlab.org] | * [mailto:vpk@jlab.org vpk@jlab.org] | ||
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== <font color=blue>''' Run Plan: Jan 31, 2022 '''</font> == | == <font color=blue>''' Run Plan: Jan 31, 2022 '''</font> == | ||
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* LAr for 2 days | * LAr for 2 days | ||
* single tin foil for 1 day or until Ca target is ready | * single tin foil for 1 day or until Ca target is ready | ||
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− | <b> NOTE: BOTH the shift expert AND the shift worker MUST check monitoring histograms at least once every 1-2 hours to make sure there are no major detector problems. </b> | + | <font color=blue><b> NOTE: BOTH the shift expert AND the shift worker MUST check monitoring histograms at least once every 1-2 hours to make sure there are no major detector problems. </b></font> |
<br/> | <br/> | ||
Revision as of 12:50, 31 January 2022
- Shift Documentation
- Phone Numbers
- Short Term Schedule
- Notes/Known Issues
- Shift Expert
- Remote Worker Shift
- Monitoring
- Useful Links
Shift ScheduleESAD, COO, RSADShift ChecklistHot CheckoutBeam Time Accounting
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Manuals |
Procedures |
JLab Logbooks
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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+[ten digit number]
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- 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 M, Fall 2021
Beam energies: 2.1, 4.0, 6.0 GeV (1.96 GeV/pass)
RC: Susan Schadmand and Sebastian Kuhn
- Susan Schadmand (757) 575-7540, susansch@jlab.org
- Sebastian Kuhn (757) 639-6640, kuhn@jlab.org
- 9 575 7540 from Counting Room
PDL: Valery Kubarovsky
- (757) 876-1789
- 9 876-1789 from Counting Room
- vpk@jlab.org
Run Plan: Jan 31, 2022
Production runs use PROD67_noVTPread and the trigger rgm_6GeV_inb_v1_0.trg .
Run duration 100M events or 4 hours, whichever comes first.
- cryo target is empty, cell stays in position, Beam blocker is IN
- pass change (6 GeV beam) is done
- Need to establish quality beam, repeat beam centering
- we are starting with LAr, run with 20-25 nA without beam blocker
- Once beam is back, call Sergey for a short test he wants to do.
- LAr for 2 days
- single tin foil for 1 day or until Ca target is ready
DAQ configuration
PROD67_noVTPread , production trigger rgm_6GeV_inb_v1_0.trg .
NOTE: BOTH the shift expert AND the shift worker MUST check monitoring histograms at least once every 1-2 hours to make sure there are no major detector problems.
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
(last update 01/18/2022- 23:30)
Nominal Beam Positions
- 2H01, X: -0.6 mm, Y: 0.8 mm
- 2C24, X: -2.0 mm, Y: +0.6 mm
FSD Thresholds
- 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 (6 nA, production C) [4] Old reference Monitoring Histograms (50 nA, production LD2) [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.
NOTE: BOTH the shift expert AND the shift worker MUST check monitoring histograms at least once every 1-2 hours to make sure there are no major detector problems.
Notes
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Known Issues
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NOTE: BOTH the shift expert AND the shift worker MUST check monitoring histograms at least once every 1-2 hours to make sure there are no major detector problems.
(remote) shift worker: see dedicated Remote Shifts tab above. |
TasksEvery Run:
Every Shift:
Regularly:
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Webcams
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Manuals |
Hall Webcams |
Epics on the web
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Live Monitoring Links
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Hall-B
Run lists |
AcceleratorReferences |
ZOOM meetings
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