Principles of Nuclear Magnetic Resonance Microscopy

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Clarendon Press, 1993 - 492 Seiten
Nuclear Magnetic Resonance Imaging is best known for its spectacular use in medical tomography. However the method has potential applications in biology, materials science, and chemical physics, some of which have begun to be realized as laboratory NRM spectrometers have been adapted toenable small scale imaging. NMR microscopy has available a rich variety of contrast including molecular specificity and sensitivity to molecular dynamics.In NMR imaging the signal is acquired in k-space, a dimension which bears a Fourier relationship with the positions of nuclear spins. A dynamic analogue of k-space imaging is the Pulsed Gradient Spin Echo (PGSE) experiment in which the signal is acquired in q-space, conjugate to the distances movedby the spins over a well-defined time interval. q-space microscopy provides images of the nuclear self-correlation function with a resolution some two orders of magnitude better than is possible in imaging the nuclear density. As well as revealing the spectrum of molecular motion, PGSE NMR can beused to study morphology in porous systems through the influence of motional boundaries.This book explores principles and common themes underlying these two variants of NMR Microscopy, providing many examples of their use. The methods discussed here are of importance in fundamental biological and physical research, as well as having applications in a wide variety of industries,including those concerned with petrochemicals, polymers, biotechnology, food processing and natural product processing.
 

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Inhalt

PRINCIPLES OF IMAGING
1
SPATIALLY HETERO GENEOUS MOTION
8
INTRODUCTORY NUCLEAR MAGNETIC RESONANCE
25
THE INFLUENCE OF MAGNETIC FIELD GRADie NTS
93
HIGHRESOLUTION kSPACE IMAGING
173
kSPACE MICROSCOPY IN BIOLOGY AND MATERIALS
228
THE MEASUREMENT OF MOT iON USING SPIN ECHOES
328
kspace imaging
350
motion
357
STRUCTURAL IMAGING USING qSPACE
371
ELEMENTS OF THE NMR Mi CROSCOPE
461
INDEX
483
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Über den Autor (1993)

Paul T. Callaghan is at Massey University, Palmerston North.

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