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Advanced Concepts in Pulsed Magnetic Resonance

  • Charles P. Slichter
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 1)

Abstract

Hahn’s discovery of spin echoes [8.1] demonstrated that one could defeat the effect of magnet inhomogeneity in obscuring the true width of magnetic resonance lines because the echo amplitude M(2τ) decayed exponentially with 2τ/T 2, where τ is the time between pulses. However, if the magnet inhomogeneity is large, and if the diffusion rate of the nuclei sufficiently great, (math) where D is the diffusion constant and ∂H/∂z the gradient in static field. In some instances, then, the τ3 term might obscure the T 2. Or, conversely, if ∂H/∂z is known, the τ3 term gives one a method of measuring D. The derivation of the diffusion term is given in Appendix G.

Keywords

Dipolar Coupling Spin Echo Spin Rotation Knight Shift Pulse Cycle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1978

Authors and Affiliations

  • Charles P. Slichter
    • 1
  1. 1.Department of PhysicsUniversity of Illinois at Urbana-ChampaignUrbanaUSA

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