Difference between revisions of "Engineering Run"

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* <s>Complete RICH optimization studies at a beam current of 50 nA (set appropriate FSD thresholds). See instructions in [https://logbooks.jlab.org/entry/3512632 logbook] for the DAQ settings.</s>
 
* <s>Complete RICH optimization studies at a beam current of 50 nA (set appropriate FSD thresholds). See instructions in [https://logbooks.jlab.org/entry/3512632 logbook] for the DAQ settings.</s>
 
* Take data for EC calibration studies for 2 hours at 10 nA. Contact the ECAL expert for this work. Set appropriate FSD thresholds for the chosen current.
 
* Take data for EC calibration studies for 2 hours at 10 nA. Contact the ECAL expert for this work. Set appropriate FSD thresholds for the chosen current.
* Complete solenoid field scan:
 
** With a beam current of 10-20 nA, study the detector rates and currents for all subsystems, as well as DC occupancies for solenoid field settings of 100%, 90%, 80%, 70%, 60%, 50%. Record all information in the logbook. Set the proper FSD trip levels.
 
 
* Take higher luminosity data:
 
* Take higher luminosity data:
 
** Complete luminosity scan at currents of 100 nA, 125 nA, 150 nA using a random trigger (FSD settings of 400 upstream, 1000 midstream, 2e6 downstream, and 2e5 BOM). For each setting, record the rates and currents for all subsystems, as well as DC occupancies. Record all information in the logbook. DC time windows should be 250 ns (R1), 500 ns (R2), 750 ns (R3).
 
** Complete luminosity scan at currents of 100 nA, 125 nA, 150 nA using a random trigger (FSD settings of 400 upstream, 1000 midstream, 2e6 downstream, and 2e5 BOM). For each setting, record the rates and currents for all subsystems, as well as DC occupancies. Record all information in the logbook. DC time windows should be 250 ns (R1), 500 ns (R2), 750 ns (R3).
 
** Take data at 75 nA for 2 hr (set proper FSD trip levels)
 
** Take data at 75 nA for 2 hr (set proper FSD trip levels)
 
** Take data at 125 nA for 2 hr (set proper FSD trip levels)
 
** Take data at 125 nA for 2 hr (set proper FSD trip levels)
 +
* Complete solenoid field scan:
 +
** With a beam current of 10-20 nA, study the detector rates and currents for all subsystems, as well as DC occupancies for solenoid field settings of 100%, 90%, 80%, 70%, 60%, 50%. Record all information in the logbook. Set the proper FSD trip levels.
 
* Take calibration data with the torus at 60% field and the solenoid at 60% field for 8 hours at 10 nA beam current (set proper FSD thresholds). This work is as specified in the Commissioning Run Plan [https://www.jlab.org/Hall-B/calcom/cwb-erun.pdf Phase 1 Step #14].
 
* Take calibration data with the torus at 60% field and the solenoid at 60% field for 8 hours at 10 nA beam current (set proper FSD thresholds). This work is as specified in the Commissioning Run Plan [https://www.jlab.org/Hall-B/calcom/cwb-erun.pdf Phase 1 Step #14].
 
* Take data run for 8 hours at 50 nA (set proper FSD trip levels).
 
* Take data run for 8 hours at 50 nA (set proper FSD trip levels).

Revision as of 11:06, 14 January 2018

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