Make New Entry, Make Followup Entry
User name Jin Huang
Log entry time 20:37:27 on March 01, 2009
Entry number 264125
This entry is a followup to: 263471
keyword=Spin Flip to 90 Degree/ Transverse+Before production run 20480 & 1928, Target spin direction rotated to 90
degrees: Transverse +. First NMR after this rotation shows 60% polarization.
Field direction is rotated to 270 degrees while keeping target spin
anti-parallel to it.
Now the settings is the following:
* Spin direction: 90 degrees/Transverse +
* Laser: "Spin down"(E06-010 convention)/Transverse + pumping
* Holding Field direction: 270 degrees/Transverse -
PS: Field rotation code is modified to mount the stepper motor module.
Now laser polarization direction could be directly changed in
3d_rotation_V4.vi by pressing the "Laser Pol. Control" button.
A copy of this log entry has been emailed to: yqiang, jpchen, riordan
NMR Before rotation
NMR After rotation
New field rotation GUI with "Laser Pol. Control" button
Stepper motor 0338 -> Spin down position
