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| 1. |
Creating multiple‐quantum coherences in solids |
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Concepts in Magnetic Resonance,
Volume 5,
Issue 3,
1993,
Page 199-216
K. K. Gleason,
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摘要:
AbstractThe observation that multiple‐quantum (MQ) coherence size will saturate in a finite network of strongly coupled nuclear dipoles has proved useful in characterizing such materials as semiconductors, catalysts, and polymers. However, even when the size of the coherence does not reach a plateau, the dynamics of MQ growth can provide insight about the distribution and motion of such nuclei as1H and19F in solids. This article builds a relatively simple physical picture of MQ‐NMR in terms of the angular momentum operators and eigenstates of individual nuclear spins. The predictive power of this framework is examined for interpreting the behavior of large numbers of dipole‐coupled nuclei. Some nuts‐and‐bolts aspects of implementing MQ spectroscopy in the laboratory also are
ISSN:1043-7347
DOI:10.1002/cmr.1820050302
出版商:John Wiley&Sons, Inc.
年代:1993
数据来源: WILEY
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| 2. |
Relaxation time measurements in NMR imaging. Part I: Longitudinal relaxation time |
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Concepts in Magnetic Resonance,
Volume 5,
Issue 3,
1993,
Page 217-242
Eleni Kaldoudi,
Steve C. R. Williams,
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摘要:
AbstractRelaxation time measurements are important in magnetic resonance imaging. This paper discusses the need for creating calculated relaxation time images and it reviews current practices in the field. Imaging techniques based on inversion recovery, partial saturation, and variable‐tip‐angle experiments, as well as single‐shot methods that employ stimulated echoes or multiple‐readout pulses are considered. Virtues and limitations of each method are r
ISSN:1043-7347
DOI:10.1002/cmr.1820050303
出版商:John Wiley&Sons, Inc.
年代:1993
数据来源: WILEY
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| 3. |
Low‐temperature NMR techniques |
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Concepts in Magnetic Resonance,
Volume 5,
Issue 3,
1993,
Page 243-262
Mark S. Conradi,
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摘要:
AbstractThe techniques for NMR measurements at temperatures of 1‐120 K are discussed. Various cryogenic methods for attaining low temperatures are compared. Several designs and design criteria for the construction of low‐temperature NMR probes are presented. This article is intended to assist workers first entering the field of low‐temperatur
ISSN:1043-7347
DOI:10.1002/cmr.1820050304
出版商:John Wiley&Sons, Inc.
年代:1993
数据来源: WILEY
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| 4. |
Density matrix theory and its applications in NMR spectroscopy. By Thomas C. Farrar and John E. Harriman, Farragut Press, Madison, Wisconsin, 1992, Second Edition, 212 + xii pages; $24.95, ISBN: 0‐917903‐07‐02 (softcover); $39.95, ISBN: 0‐917903‐08‐0(hardcover) |
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Concepts in Magnetic Resonance,
Volume 5,
Issue 3,
1993,
Page 263-263
Michael Meadows,
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ISSN:1043-7347
DOI:10.1002/cmr.1820050305
出版商:John Wiley&Sons, Inc.
年代:1993
数据来源: WILEY
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| 5. |
Nuclear magnetic relaxation, useful formulae |
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Concepts in Magnetic Resonance,
Volume 5,
Issue 3,
1993,
Page 264-265
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PDF (74KB)
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ISSN:1043-7347
DOI:10.1002/cmr.1820050306
出版商:John Wiley&Sons, Inc.
年代:1993
数据来源: WILEY
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| 6. |
Conference announcement |
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Concepts in Magnetic Resonance,
Volume 5,
Issue 3,
1993,
Page 266-266
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PDF (29KB)
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ISSN:1043-7347
DOI:10.1002/cmr.1820050307
出版商:John Wiley&Sons, Inc.
年代:1993
数据来源: WILEY
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| 7. |
A word about the authors |
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Concepts in Magnetic Resonance,
Volume 5,
Issue 3,
1993,
Page 267-268
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ISSN:1043-7347
DOI:10.1002/cmr.1820050308
出版商:John Wiley&Sons, Inc.
年代:1993
数据来源: WILEY
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| 8. |
Masthead |
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Concepts in Magnetic Resonance,
Volume 5,
Issue 3,
1993,
Page -
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PDF (86KB)
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ISSN:1043-7347
DOI:10.1002/cmr.1820050301
出版商:John Wiley&Sons, Inc.
年代:1993
数据来源: WILEY
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