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    User name Yi/Chiranjib

    Log entry time 11:50:40 on January 20, 2009

    Entry number 256919

    keyword=EPR for Vertical Anti-parallel Pumping

    ************************************************************ DATA ::: C:\HappyValentine\EPR\Data\EPR_AFP_20090120_1141 Polarization = 64.7 % Calib Constant = 4.45 %/mV Cell = Brady Holding field = Vertical + Pumping Direction = Anti-Parallel ************************************************************

    The D2 light of vertical pumping is kind of weak, so we have to boost the RF quite a lot to get the EPR measurement done. Fortunately, the calibration constants from both pumping directions (parallel vs anti-parallel) are consistent in the level of 2%, therefore we can rely on parallel measurement only in the future.

    A copy of this log entry has been emailed to: jpchen, jinhuang



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