Difference between revisions of "Engineering Run"
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** Power up the torus magnet to -100% field (negative polarity; negatives outbending) | ** Power up the torus magnet to -100% field (negative polarity; negatives outbending) | ||
** After the torus is at full field, power up the solenoid magnet to 50% field (positive polarity) | ** After the torus is at full field, power up the solenoid magnet to 50% field (positive polarity) | ||
− | |||
* Before beam delivery to the hall: | * Before beam delivery to the hall: | ||
** Make sure all detectors are off (leave DC LV on) | ** Make sure all detectors are off (leave DC LV on) | ||
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* Begin 1-pass program by tuning 10 nA beam to the tagger magnet yoke dump. Follow the beam tuning procedures for Hall B on the run wiki under Procedures. The beamline expert will oversee this work remotely. | * Begin 1-pass program by tuning 10 nA beam to the tagger magnet yoke dump. Follow the beam tuning procedures for Hall B on the run wiki under Procedures. The beamline expert will oversee this work remotely. | ||
* When the beam tune is acceptable in the upstream beamline, turn off/degauss the tagger magnet and tune 10 nA beam to the Faraday Cup. The beamline expert will oversee this work remotely. | * When the beam tune is acceptable in the upstream beamline, turn off/degauss the tagger magnet and tune 10 nA beam to the Faraday Cup. The beamline expert will oversee this work remotely. | ||
+ | As part of the beam tuning, bring the solenoid magnet to 100% field. | ||
+ | ** After both magnets are at full field, record in the logbook the screens for the load cells and strain gauges for the torus and the screens for the load cells and EM forces for the solenoid | ||
* When physics quality beam is established to the Faraday Cup, turn on the forward detectors (ECAL, FTOF, LTCC, HTCC, RICH). Record rates and currents in the logbook. | * When physics quality beam is established to the Faraday Cup, turn on the forward detectors (ECAL, FTOF, LTCC, HTCC, RICH). Record rates and currents in the logbook. | ||
* Fill the cryotarget. | * Fill the cryotarget. |