Difference between revisions of "Run Group A"
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''(last update 2/20 - 1:15 AM)'' | ''(last update 2/20 - 1:15 AM)'' | ||
− | *<font color=red> '''When beam to | + | *<font color=red> '''When beam to Faraday Cup the Fast Shut Dow: Upstream, Midstream, Downstream, BOM and Solenoid should be always Unmasked ''' |
*'''Always monitor the rates on the Halo counters when they are tuning beam to the other halls''' | *'''Always monitor the rates on the Halo counters when they are tuning beam to the other halls''' | ||
* '''Do Not turn on or off SVT only SVT expert can do that''' | * '''Do Not turn on or off SVT only SVT expert can do that''' | ||
* '''Any request for special run change of configuration has to be approved by RC & documented''' | * '''Any request for special run change of configuration has to be approved by RC & documented''' | ||
'''</font> | '''</font> | ||
+ | |||
+ | *When beam is available, notify beamline expert and run coordinator. Then check beam profile by performing harp scans. Call PDL to ramp up solenoid and torus to 100%, with negative inbending. | ||
+ | *Once the beam profile is satisfying, call beamline expert to perform Moller run. | ||
+ | *After the Moller run, turn off HVs of all detectors. Then send beam to the Faraday Cup with empty target. <font color=red> Make sure Upstream, Midstream, Downstream, BOM and Solenoid FSDs are Unmasked with appropriate thresholds. </font> | ||
+ | *Once the beam is going to the Faraday cup, call MCC to stop the beam and fill the target. | ||
+ | *Set correct FSD thresholds for 50nA and then ask MCC to send 50 nA. | ||
+ | *Except for SVT, turn on HVs for all detectors. Call SVT expert to turn ON SVT. | ||
+ | |||
+ | *If beam does not suffer too many trips (no more than one trip per 5 minutes and no longer than 1 minute), take data with random trigger for 2 hours (trigger file to be specified). Then switch to luminosity scan. Take the following runs: | ||
+ | ** 5 nA - 4 hours (3.5 M events) | ||
+ | ** 10 nA - 2 hours (3.5 M events) | ||
+ | ** 35 nA - 0.5 h (6 M events) | ||
+ | ** 50 nA - 0.5 h ( 8.5 M events) | ||
+ | ** 75 nA - 0.5 h (12M events). | ||
+ | |||
+ | * If beam is too unstable, take data in PROD configuration with trigger file "trigger_v10" at 50 nA. | ||
<!-- === Updated March 6, 9:39 === | <!-- === Updated March 6, 9:39 === |