Low-field method for measuring proton gyromagnetic ratio

A measurement of the proton gyromagnetic ratio in water by the low-field method is in progress. The Earth's magnetic field is compensated down to 1 nT at the center of Helmholtz coils in the constructed nonmagnetic facilities. The solenoid former of fused silica has been fabricated by the screw grinding and lapping within the dimensional variations of a few micrometers.<
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