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    User name solvignon

    Log entry time 01:34:40 on January20,2003

    Entry number 92626

    keyword=target:NMR measurement

    12:31am --> NMR measurement at 180deg: P= 33.5%
    12:36am --> turn off longitudinal lasers, rotate the field to 0deg, move half-wave plates out.
    12:56am --> turn on longitudinal lasers. Wait for the oven to stabilize.
    NMR measurement at 0deg: P= 33.7%
    12:59am --> turn off longitudinal lasers, rotate the field to 180deg, move half-wave plates in. Target in pol.3He

    It looks like there is no problem to take NMR measurement at 180deg. The increase in the polarization is certainly due to the oven temperature (1 or 2 degC higher) and to the fit offset.