Difference between revisions of "Engineering Run"
Jump to navigation
Jump to search
Line 95: | Line 95: | ||
* Take data run with the production electron trigger with modified prescale factor on ECIn. Contact Cole Smith for directions. | * Take data run with the production electron trigger with modified prescale factor on ECIn. Contact Cole Smith for directions. | ||
* Complete a scan of beam currents at 10 nA, 15 nA, 20 nA using the random trigger (random_only.trg) with the nominal production DC readout time windows. At each setting record rates in all detectors and currents in DC, SVT, and MM. Take 10 min of data at each setting. Enter DC occupancies from mon12 in the logbook. Data should only be taken if the beam tuning is very stable. The pulser should be stopped if beam goes off during the run. To stop/start the pulser without stopping the run, use the commands tcpClient trig1 'tsDisableRandomTrigger()' (to stop) and tcpClient trig1 'tsSetRandomTrigger(1,5)' (to start). | * Complete a scan of beam currents at 10 nA, 15 nA, 20 nA using the random trigger (random_only.trg) with the nominal production DC readout time windows. At each setting record rates in all detectors and currents in DC, SVT, and MM. Take 10 min of data at each setting. Enter DC occupancies from mon12 in the logbook. Data should only be taken if the beam tuning is very stable. The pulser should be stopped if beam goes off during the run. To stop/start the pulser without stopping the run, use the commands tcpClient trig1 'tsDisableRandomTrigger()' (to stop) and tcpClient trig1 'tsSetRandomTrigger(1,5)' (to start). | ||
− | * Complete a scan of beam currents at 30 nA, 40 nA, 50 nA, 60 nA, 70 nA using the random trigger (random_only.trg). At each setting record rates in all detectors and currents in DC, SVT, and MM. Take 10 min of data at each setting. Enter DC occupancies from mon12 in the logbook. Data should only be taken if the beam tuning is very stable. The pulser should be stopped if beam goes off during the run. To stop/start the pulser without stopping the run, use the commands tcpClient trig1 'tsDisableRandomTrigger()' (to stop) and tcpClient trig1 'tsSetRandomTrigger(1,5)' (to start). | + | * Complete a scan of beam currents at 30 nA, 40 nA, 50 nA, 60 nA, 70 nA using the random trigger (random_only.trg). At each setting record rates in all detectors and currents in DC, SVT, and MM. Take 10 min of data at each setting. Enter DC occupancies from mon12 in the logbook. Data should only be taken if the beam tuning is very stable. The pulser should be stopped if beam goes off during the run. To stop/start the pulser without stopping the run, use the commands: |
+ | tcpClient trig1 'tsDisableRandomTrigger()' (to stop) and | ||
+ | tcpClient trig1 'tsSetRandomTrigger(1,5)' (to start). | ||
* 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. | ||
* 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. | * 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. |
Revision as of 11:39, 17 December 2017
[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 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:
tcpClient trig1 'tsDisableRandomTrigger()' (to stop) and tcpClient trig1 'tsSetRandomTrigger(1,5)' (to start).
|
General Instructions:
Beam Tuning:
When ready to get beam, Turn all beamline devices ON, turn all CLAS12 detectors OFF (including SVT)
|
Every Shift:
|
Every Run:
|
---|
Webcams |
Manuals |
Epics on the web
|