Proton gyromagnetic ratio

Here, rodu is the effective distance between the gadolinium electronic spin and the water protons, ys (yi) is the electron (proton) gyromagnetic ratio and Tci is the correlation time, defined by... 

P B) probability of field magnitude R the Vp proton gyromagnetic ratio... 

For free electrons, the magnitude of the magnetic dipole moment is obtained from the Bohr magneton 9.2740 X 10 J T ) and the g factor (2.0023). The proton gyromagnetic ratio y should then... 

The first term is the intrinsic relaxation time, T2, which depends oti the bulk fluid and the formation properties. The sectmd term represents the decay caused by the molecular diffusion in a gradient magnetic field, where y is the proton gyromagnetic ratio, G is the magnetic field gradient that varies with frequency. The large diffusion contrast controls the ratio Ti/T2 pp and makes this technique suitable for separating gas from liquids (Hursan et al., 2005). 

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