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    User name Armstrong

    Log entry time 23:43:43 on October 24, 2009

    Entry number 296521

    keyword=Target: beam compensation not working

    During Target initial tests with beam (as we ramp it up) we end up with seeing the target not regulate properly. Goes too cold with beam on, does not increase the HP heater enough. PID problem? Call Dave Meekins (poor guy..)

    It seems the "beam compensation" has some sort of software issue. We note that it appears that the wrong dE/dx was loaded for the cell properties; Dave has fixed this, but it still does not seem to be working. Dave suspects a software issue, and turns off beam compensation for now. Should be OK for the weekend - it will just not compensate as rapidly as ideally to a beam trip... will live with this for now...