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    User name Yi Qiang

    Log entry time 12:19:00 on May 05, 2009

    Entry number 270996

    This entry is a followup to: 269713

    keyword=EPR Calibration for Vertical Pumping

    == Test Condition ==
    Cell: Dominic
    Oven Temperature: 230C
    Field Direction: Transverse -
    Laser Power: 3x25 COMET
    Cell Density: 10.83 amg

    == Rb Parallel ==
    Pumping Direction: Parallel
    Data directory: C:\AyeD\EPR\Data\EPR_AFP_20090505_1159
    Calibration Constant: 3.27 %/mV
    Polarization: 63.5%
    Field: 25.04 G
    EPR Frequency Shift: 85.53 kHz

    == K Parallel ==
    Pumping Direction: Parallel
    Data directory: C:\AyeD\EPR\Data\EPR_AFP_20090505_1146
    Calibration Constant: 2.89 %/mV
    Polarization: 57.5%
    Field: 25.08 G
    EPR Frequency Shift: 90.31 kHz

    == Rb Anti-Parallel ==
    Pumping Direction: Parallel
    Data directory: C:\AyeD\EPR\Data\EPR_AFP_20090505_1117
    Calibration Constant: 2.76 %/mV
    Polarization: 57.0%
    Field: 25.07 G
    EPR Frequency Shift: 82.98 kHz

    == K Anti-Parallel ==
    Pumping Direction: Anti-Parallel
    Data directory: C:\AyeD\EPR\Data\EPR_AFP_20090505_1125
    Calibration Constant: 2.92 %/mV
    Polarization: 59.0%
    Field: 25.06 G
    EPR Frequency Shift: 146.03 kHz

    The Calibration constants from Rb is still not consistent with K and they
    don't even agree with each other in different pumping direction. So I
    will use the most accurate calibration from K parallel measurement as the
    new constant.

    A copy of this log entry has been emailed to: jpchen, tdaver@wm.edu, miham, yawei, jinhuang



    Rb Anti-parallel AFP



    Rb Anti-parallel Analysis



    K Anti-parallel AFP



    K Anti-parallel Analysis



    Rb Parallel AFP



    Rb Parallel Analysis



    K Parallel AFP



    K Parallel Analysis