Run Coordinator report: Fall 2021 w1

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My RC tenured covered the beam restoration and first week of physics beam delivery. In summary, it was a relatively successful week given that it consisted of commissioning done with accelerator operation still trying to establish physics beam to Halls B, C and D. Beam became available nearly on time and at the end of my RC tenure, we were well along in commissioning, with beam quality checkout mostly done, detector/beamline calibration/checkout done, the new detectors commissioning ongoing, trigger set-up started and diamond (JD70-103) aligned, with the diamond quality (from the coherent peak shape) appearing to be quite good. There was no important problem on the Hall D side. The major tasks that remained before being ready for data production were understanding the new detectors, in particular the CToF, optimizing the photon flux/polarization, and setting up the level-1 trigger. The more detailed summary follows:

Physics beam delivery was scheduled for Wednesday June 8 2022. The beam came nearly on-time, with Beam Operation Group (Ops) asking us to be ready by 11am-noon for physics beam. We required shifts to be manned starting at noon but beam came the next day (Thursday 9th) around 8am-9am mainly due to problem trying to tune beam to Hall C (Hall B was still open: they started a few days late due work on their polarized target). One significant item was regarding our beam tuning was that one of the quadrupole (MQP5C09) on Hall D line is currently not operable. CASA devised a tune for us that does not use this quad, so we have an unusual beam tuning at the moment. Our program started after Ops did our Ion Chamber calibration