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User name Jin Huang
Log entry time 11:36:10 on February 26, 2009
Entry number 263471
This entry is a followup to: 262886
Followups:
keyword=Target spin direction rotated to 270 degrees; All Back to Normal d2n SettingsTarget spin direction rotated to 270 degrees: Transverse -. First NMR
after this rotation shows 55.92% polarization.
Field direction is rotated to 90 degrees while keeping target spin
anti-parallel to it. Therefore, spin direction is rotated to 270 degrees.
Now the settings is the following:
* Spin direction: 270 degrees/Transverse -
* Laser: Spin up/Transverse - pumping
* Holding Field direction: 90 degrees/Transverse +
Also,
* Correction coil is turned off.
(It was set to 1.1A at last spin flip to inverse spin direction)
* Spin signal to normal d2n setting
* 1. The main copy of spin signal recovered to both channel logical 1
* 2. second copy outputs spin=-1 (=Transverse - polarization)
A copy of this log entry has been emailed to: jpchen, yqiang
Figure 1
Figure 2
