Main INDEX
Monthly INDEX
PREV
NEXT
User name kramerk
Log entry time 21:35:23 on July12,2001
Entry number 65861
keyword=Target - Lack of Cooling Jets change Calibration Constant
The temperature measurements done to calculate the calibration constant were done with the cooling jets on. Since the cooling jets have been shut off, the temperature distibution is significantly different and the calibration constant is no longer valid. A new temperature study would have to be done to get a correct calibration. Since we don't plan to take data on the target without the cooling jets, there is no real reason to do this study.
However, this means we should record the temperature at every NMR (even if you use the Spin-Up VI) so we know we need to make adjustments if we need the polarization from these measurements.