Journal ArticleDOI
Self‐Diffusion Studies by Means of Nuclear Magnetic Resonance Spin‐Echo Techniques
David W. McCall,Dean C. Douglass,Ernest W. Anderson +2 more
- Vol. 67, Iss: 3, pp 336-340
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TLDR
The spin-echo, magnetic resonance method for measuring self-diffusion coefficients is reviewed and the results obtained to date are summarized in this paper, where several uses of selfdiffusion results are discussed.Abstract:
The spin-echo, magnetic resonance method for measuring self-diffusion coefficients is reviewed and the results obtained to date are summarized. Several uses of self-diffusion results are discussed.
Es wird uber die Kernresonanz-Spin-Echotechnik zur Messung von Selbstdiffusionskoeffizienten berichtet. Die bis heute erhaltenen Ergebnisse werden zusammengestellt. Verschiedene Anwendungen dieser Ergebnisse werden diskutiert.read more
Citations
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Journal ArticleDOI
Spin diffusion measurements : spin echoes in the presence of a time-dependent field gradient
E. O. Stejskal,J. E. Tanner +1 more
TL;DR: In this article, a derivation of the effect of a time-dependent magnetic field gradient on the spin-echo experiment, particularly in the presence of spin diffusion, is given.
Journal ArticleDOI
Use of Spin Echoes in a Pulsed Magnetic‐Field Gradient to Study Anisotropic, Restricted Diffusion and Flow
TL;DR: In this article, the Bloch-Torrey equations are modified to include the case of anisotropic, restricted diffusion and flow, and the problem of solving these modified equations for the amplitude of a spin echo in a time-dependent magnetic field gradient subject to restricting boundary conditions is discussed.
Journal ArticleDOI
Restricted Self‐Diffusion of Protons in Colloidal Systems by the Pulsed‐Gradient, Spin‐Echo Method
J. E. Tanner,E. O. Stejskal +1 more
TL;DR: The pulsed gradient, spin-echo technique has been used to study self-diffusion of protons in several colloidal systems in order to examine the usefulness of that technique in determining the extent to which the free movement of molecules in these systems is restricted by the colloidal structures present as discussed by the authors.
Journal ArticleDOI
Pulsed-field gradient nuclear magnetic resonance as a tool for studying translational diffusion, part 1: basic theory
TL;DR: In this paper, the authors considered the physical basis of the echo attenuation of a Hahn spin-echo pulse sequence containing a magnetic field gradient pulse in each τ period to measure the displacement of the observed spins.
References
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Journal ArticleDOI
Effects of Diffusion on Free Precession in Nuclear Magnetic Resonance Experiments
H. Y. Carr,Edward M. Purcell +1 more
TL;DR: In this paper, the effect of diffusion on free precession in nuclear resonance has been studied, and a new scheme for measuring the transverse relaxation time is described, which largely circumvents the diffusion effect.
Journal ArticleDOI
Nuclear Magnetic Resonance in Liquids under High Pressure
George B. Benedek,E. M. Purcell +1 more
TL;DR: In this paper, an application of free precession or ''spin echo'' techniques in nuclear magnetic resonance to a study of the properties of liquids under high pressure was reported. But the results were limited to six liquids: water, n-pentane, n−hexane, toluene, ethyl iodide, and methyl iodide.
Journal ArticleDOI
Free nuclear induction
TL;DR: In this paper, the radiofrequency energy is applied to the sample in the form of short, intense pulses, and nuclear signals are observed after the pulses are removed. But the effects which result can be compared to the free vibration or ringing of a bell, a term often applied to free harmonic oscillations of a shocked inductive-capacitive circuit.
Journal ArticleDOI
On the Kinetic Theory of Dense Fluids. IX. The Fluid of Rigid Spheres with a Square‐Well Attraction
TL;DR: In this paper, the statistical theory of a dense fluid of molecules interacting with a squarewell potential is discussed via the derivation and solution of a modified Boltzmann equation, which is used to provide a test of the theory proposed by Rice and Allnatt; and estimate the attractive force contribution to the transport of momentum and energy in a real fluid.
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Spin diffusion measurements : spin echoes in the presence of a time-dependent field gradient
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Effects of Diffusion on Free Precession in Nuclear Magnetic Resonance Experiments
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