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User name Chiranjib
Log entry time 11:29:37 on December 13, 2008
Entry number 253218
Followups:
keyword=NMR frequency / field sweep cross calibration
A cross calibration of the field and frequency sweep is performed before
we switch to the vertical field configuration from the transverse field
configuration. The measurements are performed accordingly as follows::
First NMR frequency sweep
___________________________
Laser = OFF
Holding Field = Transverse -
Target position = he-3
RF = Longitudinal
PC pick up coil = Vertical
signal = 19mV / 18.5 mV
Calibration constant used = 2.99% /mV
Polarization = 56.06 %
**********************************************
NMR field sweep
________________________
Laser = OFF
Holding Field = Longitudinal +
Target position = pick up coil
RF = Vertical
PC pick up coil = Transverse
signal = 120mV / 118 mV
Calibration constant used = 0.244% /mV
Polarization = 58%
**********************************************
First NMR frequency sweep
___________________________
Laser = OFF
Holding Field = Transverse -
Target position = he-3
RF = Longitudinal
PC pick up coil = Vertical
signal = 17.5mV / 17.5 mV
Calibration constant used = 2.99% /mV
Polarization = 52.36 %
***********************************************
A copy of this log entry has been emailed to: jpchen,yqiang