The effect of H1 inhomogeneity on T1 measurements

Anil Kumar, ; Johnson Jr., Charles S. (1972) The effect of H1 inhomogeneity on T1 measurements Journal of Magnetic Resonance (1969), 7 (1). pp. 55-59. ISSN 0022-2364

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A density matrix analysis is presented of the effects of inhomogeneity in the radio frequency field H1 on spin-lattice relaxation measurements by the ∏-τ-∏/2 pulse sequence. By taking into account the decay of magnetization in the x-y plane during the time interval τ it is shown that the apparent magnetization recovery curve is nonexponential when T1 ˜ T2. Proper corrections are given for calculating T1 from the null method experiment.

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