Difference between revisions of "Engineering Run"
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* Start the DAQ with the production electron trigger (trigger_electron.trg) with beam currents in the range from 10 nA to 70 nA. Be sure to record rates in all detectors and currents in the DC, SVT, MM at several discrete steps. | * Start the DAQ with the production electron trigger (trigger_electron.trg) with beam currents in the range from 10 nA to 70 nA. Be sure to record rates in all detectors and currents in the DC, SVT, MM at several discrete steps. | ||
* Take data run with the production electron trigger with modified prescale factor on ECIn. Contact Cole Smith for directions on the trigger file and the beam current. | * Take data run with the production electron trigger with modified prescale factor on ECIn. Contact Cole Smith for directions on the trigger file and the beam current. | ||
− | * Complete | + | * Complete calibration runs at beam currents of 25 na, 50 nA, and 75 nA. Take 2 hr of data at each setting. Data should only be taken if the beam tuning is very stable. |
* Perform DC HV/threshold study with settings #8, #9, #9 for R1, R2, R3 with thresholds of -20 mV, -30 mV, -30 mV. | * Perform DC HV/threshold study with settings #8, #9, #9 for R1, R2, R3 with thresholds of -20 mV, -30 mV, -30 mV. | ||
− | |||
* Measure DC occupancy as function of solenoid field | * Measure DC occupancy as function of solenoid field | ||
* Beamline commissioning studies: | * Beamline commissioning studies: |
Revision as of 12:52, 17 December 2017
[edit]
Shift ScheduleShift ChecklistHot CheckoutBeam Time Accounting |
Manuals |
Procedures |
JLab Logbooks
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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
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CLAS12 Engineering Run, Fall 2017
Beam energy 10.6 GeV (5 pass)
Torus : +3200 A (85% field), Solenoid: 2416 A (100% field), full target;
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
Run Plan:
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General Instructions:
Beam Tuning:
When ready to get beam, Turn all beamline devices ON, turn all CLAS12 detectors OFF (including SVT)
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Every Shift:
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Every Run:
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Manuals |
Epics on the web
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