Difference between revisions of "Run Group A"
Jump to navigation
Jump to search
Line 120: | Line 120: | ||
* Hall sweep around the magnet before the hall going to power permit | * Hall sweep around the magnet before the hall going to power permit | ||
* Call Maxime to switch the gas system for MM 8 hours before beam | * Call Maxime to switch the gas system for MM 8 hours before beam | ||
− | |||
* Target is empty | * Target is empty | ||
* Power up the TORUS up to negative polarity full field (Will be done by RC or PDL) | * Power up the TORUS up to negative polarity full field (Will be done by RC or PDL) |
Revision as of 18:16, 10 February 2018
[edit]
Shift ScheduleShift ChecklistHot CheckoutBeam Time Accounting |
Manuals |
Procedures |
JLab Logbooks
|
|
|
- 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 A, Winter 2018
Beam energy 6.4 GeV (3 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: Latifa Elouadrhiri
- (757) 575-7540
- 9 575 7540 from Counting Room
- latifa@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 on 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 2/10 - 17:00)
Prepare For Beam Tuning:'
Once the beam is stable put beam blocker in ask MCC for 50 nA and start data taking for 8 hours 2 hours/run |
General Instructions:
Every Shift:
Every Run:
|
Webcams |
Manuals |
Epics on the web
|
Hall-B |
Accelerator |
Bluejean meetings
|