Difference between revisions of "Run Group M"
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+ | == <font color=blue> DAQ configuration </font> == | ||
+ | <b> PROD67_noVTPread </b>, production trigger <b> rgm_6GeV_inb_v1_0.trg </b> | ||
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+ | <b> At the end of each run, follow the <font color=red>STANDARD DAQ RESTART SEQUENCE</font> </b>'''<br> | ||
+ | * "end run", if the run ended correctly then: "prestart", "go" | ||
+ | <!-- This needs to be followed at the end of every run. Note: this might be different from the instructions coming up on RunControl. --> | ||
+ | <b><font color=red> | ||
+ | * 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.</font></b> 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. | ||
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+ | == <font color=blue>''' Announcements'''</font>== | ||
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+ | * If any weird stripes appear in the DC occupancy plots, call Sergey. This is a known problem. | ||
* '''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 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 to 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 a bad beam tune or bleed-through from other Halls. | The integrated rates on the upstream counters have to be in the range 0-15 Hz (rates up to 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 a bad beam tune or bleed-through from other Halls. | ||
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*'''Note 11: LTCC is NOT used in this experiment. HV should be kept OFF.''' | *'''Note 11: LTCC is NOT used in this experiment. HV should be kept OFF.''' | ||
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+ | *'''Note 12: If responding to RICH or Trigger alarms please post screens also to RICH or HBTRIGGER logbook, respectively.''' | ||
+ | *'''Note 13: Do a RICH recovery (press the RICH Recovery button on the GUI) once daily during the day shift between runs.''' | ||
− | + | *'''Note 14: Cycle the FMT Gas once er shift. If done rapidly without pausing (Gas "stop"-"yes"-"start"-"yes"), the HV should not crash.''' | |
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== <font color=blue>''' References and Standards:'''</font>== | == <font color=blue>''' References and Standards:'''</font>== |
Revision as of 14:36, 13 December 2021
Shift ScheduleESAD, COO, RSAD Read before shift!!!Shift 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+[10 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 this page to force a refresh.
CLAS12 Run Group M, Fall 2021
Beam energies: 2.1, 4.0, 6.0 GeV (1.96 GeV/pass)
Important: Document all your work in the logbook!
RC: Larry Weinstein
- (757) 575-7540
- 9 575 7540 from Counting Room
- weinstei@jlab.org
PDL: Valery Kubarovsky
- (757) 876-1789
- 9 876-1789 from Counting Room
- vpk@jlab.org
Run Plan: Dec 10 - Dec 14 2021
PROD67_noVTPread and the trigger rgm_6GeV_inb_v1_0.trg, Run duration should be no more than 100M events or 4 hours, whichever comes first.
Summary
- Until Tuesday morning: running on Ca-40 at 150 nA
- 1 hour 70 nA then 1 hour 110 nA for DC efficiency studies
- Tuesday, Dec. 14th, switch to 4He target.
- 0730 call for restricted access, ramp down solenoid, turn off beam line HV
DAQ configurationPROD67_noVTPread , production trigger rgm_6GeV_inb_v1_0.trg At the end of each run, follow the STANDARD DAQ RESTART SEQUENCE
Announcements
The integrated rates on the upstream counters have to be in the range 0-15 Hz (rates up to 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 a bad beam tune or bleed-through from other Halls.
References and Standards:(last update 12/06/2021- 23:20) Nominal Beam Positions
FSD Thresholds
Reference Harp Scans for Beam on Faraday Cup: 2C24 (tagger harp) [1], 2H01 [2] Reference Harp Scans for Beam on Tagger dump: 2C21 [3], 2C24 (tagger harp) [4] Reference Monitoring Histograms (80 nA, production Ca-48) [5] Counter rates
Beamline vacuum: should be not higher than 5e-5.
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General Instructions:
Note that the dome lights when switched off cannot be turned back on immediately because they require 10-15 min to cool down.
Every Shift:
Log screenshots of: (this is for the remote shifter, see dedicated Remote Shifts tab above.)
In case of other questions or uncertainties of what to do, call the RC or PDL |
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