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User name Yi Qiang
Log entry time 20:29:25 on March 11, 2009
Entry number 265627
keyword=Target Polarization keep dropping: incorrect spin stateAfter field rotation, instead pumping up, the polarization suffered
significantly huge drop. Then I found out that I actually did 5 single
NMR sweeps during the masing test and this leave the target spin in the
parallel state which is anti-parallel with our pumping direction so that
the laser was actually depolarizing the target. After I did another
single NMR flip, the spin direction is now correct.
Figure 1
