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Modified Spin-Echo Method for Measuring Nuclear Relaxation Times

Review of Scientific Instruments · 1958 · Vol. 29(8) · pp. 688–691
S. MeiboomDeepak Gill

Abstract

A spin echo method adapted to the measurement of long nuclear relaxation times (T2) in liquids is described. The pulse sequence is identical to the one proposed by Carr and Purcell, but the rf of the successive pulses is coherent, and a phase shift of 90° is introduced in the first pulse. Very long T2 values can be measured without appreciable effect of diffusion.

NMR spectroscopy and applicationsAdvanced NMR Techniques and ApplicationsAdvanced MRI Techniques and ApplicationsSpin echoEcho (communications protocol)Nuclear magnetic resonancePulse sequenceRelaxation (psychology)Pulse (music)DiffusionPhase (matter)PhysicsSpin (aerodynamics)
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5,910
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References
Nuclear Induction
Physical Review · 1946 · 3,465 citations
Spin Echoes
Physical Review · 1950 · 4,891 citations
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