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User name A. Puckett
Log entry time 21:53:42 on January13,2009
Entry number 255977
keyword=Swing shift summary
At beginning of shift, Moller spin dance measurements are in progress. Target is in empty position. At the end of spin dance measurements, Eugene decided to stay with the current Wien angle setting, and MCC is backing out the Moller setup at ~16:42
At ~17:30 MCC is still steering the beam to the desired positions for production running.
At ~17:44 the beam is tuned and we moved to BeO to check the beam position, and a spot++ to check the raster size. At this point, we yielded to Alex and Youcai for their RICH test runs.
At ~19:11 we moved to 3He to test increasing the raster size with 3He in the beam and to make sure we aren't hitting the target walls.
At ~19:42 we requested a controlled access in order for a group of experts to troubleshoot the high DAQ deadtime.
After the controlled access, we checked the beam spot on BeO and 3He again at 2 uA before trying to increase the current. MCC found that they could not increase above 7 uA without causing a beam trip--they said it is an injector problem and they are working on it.