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    User name jmaxwell

    Log entry time 00:38:38 on May 14, 2012

    Entry number 384765

    keyword=[Target] Polarization Decay

    Here's a look at the polarization versus dose for the past few days. In the plot, the last decay is the one we're doing now. The anneal was apparently quite effective, and we made it up to nearly 90%. The drop seemed quick, but it's actually better than what we've been seeing the past few days.

    I suspect the decay to 60% will be pretty slow. After talking to Josh, we've decided it seems like a bad idea to change the material tomorrow. We'll switch to the bottom and take data until the TE starts at 6am. We can get a free anneal tomorrow during the chicane move and the lack of material change means we get back all kinds of free time that would have been spent on yet another TE.



    A copy of this log entry has been emailed to: slifer@jlab.org



    Figure 1