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    User name D. Parno

    Log entry time 14:22:35 on December18,2008

    Entry number 253907

    This entry is a followup to: 253734

    keyword=Compton asymmetry flip after HWP removal

    After the HWP removal on Wednesday, we see a sign flip in the Compton asymmetry -- as expected. Now blue (laser left polarization) is positive at the Compton edge while red (laser right polarization) is negative.

    Asymmetry is still ~7% at the Compton edge, implying that the degree of polarization is much the same as before.


    FIGURE 1