Log entry time 12:44:51 on May 21, 2009

Entry number 275294

The AFP Loss was tested with different correction coil current settings.
The polarization is relatively low <40% so masing effect can be ignored.

Data files                                  Small  Large  AFP Loss
C:\AyeD\NMR\Data\NMR_Freq_20090521_115542   +1.0A  +0.0A  1.25%
C:\AyeD\NMR\Data\NMR_Freq_20090521_121822   +0.5A  +0.0A  1.04%
C:\AyeD\NMR\Data\NMR_Freq_20090521_121036   +0.0A  +0.0A  0.82%
C:\AyeD\NMR\Data\NMR_Freq_20090521_120632   -0.5A  +0.0A  0.94%
C:\AyeD\NMR\Data\NMR_Freq_20090521_120238   -1.0A  +0.0A  1.25%

C:\AyeD\NMR\Data\NMR_Freq_20090521_122302   +0.0A  +2.0A  1.10%
C:\AyeD\NMR\Data\NMR_Freq_20090521_122838   +0.0A  -2.0A  1.08%

So clearly, the field gradient is minimal without any correction field.
So I will leave the small correction ON with 0.5A which gives roughly
15mG/cm gradient to see whether this will help us to increase the
polarization.