Abstract
The influence of various parameters (e.g. polarization and intensity of high frequency field, NMR relaxation times, signal to noise ratio of the measuring apparatus) on the determination of NMR resonance point of a nuclear system with exactly known value of gyromagnetic factor is discussed. Special attention is given to the case of real field, which is not stable in time. It is shown that the transverse NMR relaxation time of the nuclei in the sample has to be selected in correlation with the properties of the field (e.g. time instability, spatial inhomogeneity) and of the measuring equipment (e.g. signal to noise ratio), if the lowest obtainable uncertainty of field intensity NMR measurement is to be achieved.
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The authors wish to thank to Dr. R.Gemperle and Dr. J.Pačes for their valuable comments regarding the manuscript.
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Frait, Z., Fraitová, D. Measurement of magnetic field intensity by means of NMR. I. Accuracy of measurement. Czech J Phys 27, 1292–1305 (1977). https://doi.org/10.1007/BF01589024
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DOI: https://doi.org/10.1007/BF01589024