CMR: Concepts in NMR (Wiley) - up to Jan. 10, 2009

Concepts in NMR (Wiley) - up to Jan. 10, 2009

Concepts in Magnetic Resonance Part A
Volume 34A Issue 1, Pages 60 - 61
Published Online: 9 Jan 2009

2nd edition of Spin Dyanmics is now out, review is available on the CMR website!

Spin dynamics: Basics of nuclear magnetic resonance, 2nd edition.
William S. Price
Nanoscale Organisation and Dynamics Group, College of Health and Science, University of Western Sidney, Penrith South, Australia

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Concepts in Magnetic Resonance Part A
Volume 32A Issue 6, Pages 417 - 435
Published Online: 17 Nov 2008

Nonuniform sampling: Bandwidth and aliasing
from Concepts in Magnetic Resonance Part A by G. Larry Bretthorst
For spectroscopic measurements, there are good reasons why one might consider using nonuniformly nonsimultaneously sampled complex data. The primary one is that the effective bandwidth, the largest spectral window free of aliases, can be much wider than with uniformly sampled data. In this article, we discuss nonuniformly nonsimultaneously sampled data, describe how these data are traditionally analyzed, analyze them using probability theory, and show how probability theory generalizes the discrete Fourier transform: first for uniformly sampled data, then for nonuniformly sampled data, and finally for nonuniformly nonsimultaneously sampled data. These generalizations demonstrate that aliases are not so much removed by nonuniform nonsimultaneous sampling as they are moved to much higher frequencies. © 2008 Wiley Periodicals, Inc. Concepts Magn Reson Part A 32A: 417-435, 2008.

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Concepts in Magnetic Resonance Part A
Volume 32A Issue 5, Pages 329 - 340
Published Online: 3 Sep 2008

Is quantum mechanics necessary for understanding magnetic resonance?
from Concepts in Magnetic Resonance Part A by Lars G. Hanson
Educational material introducing magnetic resonance (MR) typically contains sections on the underlying principles. Unfortunately the explanations given are often unnecessarily complicated or even wrong. MR is often presented as a phenomenon that necessitates a quantum mechanical explanation whereas it really is a classical effect, i.e. a consequence of the common sense expressed in classical mechanics. This insight is not new, but there have been few attempts to challenge common misleading explanations, so authors and educators are inadvertently keeping myths alive. As a result, new students' first encounters with MR are often obscured by explanations that make the subject difficult to understand. Typical problems are addressed and alternative intuitive explanations are provided. © 2008 Wiley Periodicals, Inc. Concepts Magn Reson Part A 32A: 329-340, 2008.