User name Yi Qiang
Log entry time 10:31:06 on September 29, 2008
Entry number 243421
keyword=Water NMR CalibrationThe down stream lock-in amplifier had unlock error, so we feeded the downstream signal to pumping chamber lock-in amplifier. Both pre-amplifier have 100x gain. The results showing are after 1500 sweeps.
Setting Lists ====================
NMR Settings for Pumping Chamber -- Target Type: Water -- Holding Field (G): 18.021954 Theta (degree): 90.000000 Phi (degree): 0.059535 High Field (G): 25.000000 Sweep Speed (G/s): 1.200000 Sit Time (s): 5.000000 RF Frequency (kHz): 90.700000 RF Power (Vrms): 0.500000 -- Start Time: 2008/09/28 19:36:19 Finish Time: 2008/09/29 07:53:32 Wait Time (m): 0.000000 Number of Sweeps: 1500 -- Lockin Sensitivity: 11 Time Constant: 4 Phase (degree): 0.000000 Sample Rate: 10 TC Filter: 4 Wide Reserve: 2 Close Reserve: 2 -- Error Message: ===============
NMR Settings for Upstream Coil -- Target Type: Water -- Holding Field (G): 18.021954 Theta (degree): 90.000000 Phi (degree): 0.059535 High Field (G): 25.000000 Sweep Speed (G/s): 1.200000 Sit Time (s): 5.000000 RF Frequency (kHz): 90.700000 RF Power (Vrms): 0.500000 -- Start Time: 2008/09/28 19:36:19 Finish Time: 2008/09/29 07:53:32 Wait Time (m): 0.000000 Number of Sweeps: 1500 -- Lockin Sensitivity: 12 Time Constant: 4 Phase (degree): 0.000000 Sample Rate: 10 TC Filter: 4 Wide Reserve: 2 Close Reserve: 2 -- Error Message: ===============
Data Directory
C:\HappyValentine\NMR\Data\NMR_Water_20080928_193619
A copy of this log entry has been emailed to: chiran@jlab.org,jkatich@jlab.org,jinhuang@jlab.org,zhangyi@jlab.org,yqiang@jlab.org,jpchen@jlab.org
Figure 1
