As we got very consistent EPR calibrations from Rb and K in Transverse pumping (Halog: 269713), I’m using this calibration constant to get the following polarization estimations. The calibration constant for the Vertical pumping is extracted by combining the Transverse calibration constant with the NMR ratio from Vertical and Transverse directions (Halog: 269724).
§ Transverse Calibration Constant: 2.205 %/mV
§ Ratio of Vertical NMR to Transverse NMR: 0.581
§ Vertical Calibration Constant: 2.205/0.581 = 3.795 %/mV
Period |
NMR (mV) |
Online Calibration Constant (%/mV) |
Online Polarization (%) |
New Calibration Constant (%/mV) |
New Preliminary Polarization |
Longitudinal Elastic |
15.6 – 5.5 |
3.967 |
62-22% |
3.795 |
59% - 21% |
Vertical Production |
22.5 Max |
3.967 |
89% Max |
3.795 |
85% Max |
Transverse Production |
18.7 |
2.037 |
38% |
2.205 |
41% |