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    User name johna

    Log entry time 00:56:52 on May 03, 2011

    Entry number 357900

    This entry is a followup to: 357899

    keyword=Beam current ramp rate looks low

    I just remembered that when we started running during the afternoon, the ramp rate for the beam was very low (below 1uA/second, since it was taking minutes to get to full current). The rate was increased, but it seems like the trip recovery is slow compared to previous days. We should ask about getting it increased, but I'm not sure how much we want to increase it, so maybe it should be brought up at the morning meeting. My recollection is that we were getting up to 120uA in about 30sec before, and it looks to be something like twice as long now.



    A copy of this log entry has been emailed to: bhovik@jlab.org,zhanxh@jlab.org,solvigno@anl.gov