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    User name M. Liang

    Log entry time 18:45:28 on January 25,1999

    Entry number 10370

    keyword=EPR/NMR calibration at 242.5 deg

    Did two sets of EPR/NMR calibration for 242.5 deg target polarization angle. Did a FM scan first. EPR with 3 lasers on, NMR lasers off.
    16:35 before moving to pick up coil position, EPR: ~35 kHz
    16:42 moving to pick-up coil position, EPR: ~35 kHz
    16:53 NMR: 9.77 mV
    16:56 NMR: 9.74 mV
    17:04 EPR: ~32 kHz
    there seems polarization loss between the last two EPRs. Decided to do another set:
    17:14 EPR: ~32 kHz
    17:22 NMR: 9.21 mV
    17:24 NMR: 9.18 mV
    17:32 EPR: ~32 kHz
    No polarization loss during this set observed. However, the polarization loss during the first set is confirmed by the NMR measurement in the second set. It's not clear where/how this happend. No correction of temperature change due to laser on/off is done yet, which may change the results. More detailed analysis will be done later. Plots in the plot-binder.