MRI and NMR Spectroscopy in the Earth's Field PDF Download

Author: Trevelyan
Publisher:
ISBN: 9781093785395
Category :
Languages : en
Pages : 140

View

Book Description
This book details constructional information for a Nuclear Magnetic Resonance (NMR) spectrometer using the natural magnetic field of the Earth as B0, and presents experiments exploring the impressive range of concepts and techniques which can be demonstrated with such a machine. These include the Free Induction Decay, T1 and T2 time constants, spin echoes with 90 degree and 180 degree B1 pulses, and the effects of B0 field inhomogeneity and shimming. Although chemical shifts of parts per million in spectral line frequency cannot be resolved, the splitting of lines by heteronuclear J-coupling is clearly displayed. The machine can make geomagnetic measurements accurate to 5 significant figures. And it can demonstrate the core principle of Magnetic Resonance Imaging: the encoding of spatial information in the phase and frequency domains using the Pulsed Gradient Spin Echo sequence.

Author: Michael L Johns
Publisher: Royal Society of Chemistry
ISBN: 1782628096
Category : Science
Languages : en
Pages : 365

View

Book Description
There has been a recent surge in hardware developments with respect to mobile NMR and MRI systems, from which novel applications are starting to emerge. These comparatively low cost systems allow either for more routine use of NMR and MRI, generally for material quality control, or they allow for the analysis of samples whose size and shape precludes conventional NMR and MRI application. This book will, for the first time, summarise these recent hardware developments, highlight the challenges facing mobile and generally low-field NMR and MRI and describe various applications. Including chapters on commercial applications in well logging and food content measurements, the broad appeal of this book will fill a gap in the literature for NMR spectroscopists, analytical chemists and all those involved in measurement science in both industry and academia.

Author: Daniel Pacheco
Publisher:
ISBN:
Category : Electromagnetism
Languages : en
Pages : 0

View

Book Description

Author: Graham A. Webb
Publisher: Academic Press
ISBN: 012397304X
Category : Science
Languages : en
Pages : 182

View

Book Description
Nuclear magnetic resonance (NMR) is an analytical tool used by chemists and physicists to study the structure and dynamics of molecules. In recent years, no other technique has gained such significance as NMR spectroscopy. It is used in all branches of science in which precise structural determination is required and in which the nature of interactions and reactions in solution is being studied. Annual Reports on NMR Spectroscopy has established itself as a premier means for the specialist and non-specialist alike to become familiar with new techniques and applications of NMR spectroscopy. - Nuclear magnetic resonance (NMR) is an analytical tool used by chemists and physicists to study the structure and dynamics of molecules - In recent years, no other technique has gained such significance as NMR spectroscopy - Established itself as a premier means for the specialist and non-specialist alike to become familiar with new techniques and applications of NMR spectroscopy

Author: Sarah L. Codd
Publisher: John Wiley & Sons
ISBN: 3527626069
Category : Science
Languages : en
Pages : 566

View

Book Description
This handbook and ready reference covers materials science applications as well as microfluidic, biomedical and dental applications and the monitoring of physicochemical processes. It includes the latest in hardware, methodology and applications of spatially resolved magnetic resonance, such as portable imaging and single-sided spectroscopy. For materials scientists, spectroscopists, chemists, physicists, and medicinal chemists.

Author: Charles Wallace Crawford
Publisher:
ISBN:
Category :
Languages : en
Pages : 294

View

Book Description

Author: Paul T. Callaghan
Publisher:
ISBN: 9780198539971
Category : Science
Languages : en
Pages : 520

View

Book Description
Although nuclear magnetic resonance is perhaps best known for its spectacular utility in medical tomography, its potential applicability to fields such as biology, materials science, and chemical physics is being increasingly recognized as laboratory NMR spectrometers are adapted to enable small scale imaging. This excellent introduction to the subject explores principles and common themes underlying two key variants of NMR microscopy, and provides many examples of their use. Methods discussed are not only important to fundamental biological and physical research, but have applications to a wide variety of industries, including those concerned with petrochemicals, polymers, biotechnology, food processing, and natural product processing. The wide range of scientists interested in NMR microscopy will want to own a copy of this book.

Author: Malcolm H. Levitt
Publisher: John Wiley & Sons
ISBN: 1118681843
Category : Science
Languages : en
Pages : 824

View

Book Description
Spin Dynamics: Basics of Nuclear Magnetic Resonance, Second Edition is a comprehensive and modern introduction which focuses on those essential principles and concepts needed for a thorough understanding of the subject, rather than the practical aspects. The quantum theory of nuclear magnets is presented within a strong physical framework, supported by figures. The book assumes only a basic knowledge of complex numbers and matrices, and provides the reader with numerous worked examples and exercises to encourage understanding. With the explicit aim of carefully developing the subject from the beginning, the text starts with coverage of quarks and nucleons and progresses through to a detailed explanation of several important NMR experiments, including NMR imaging, COSY, NOESY and TROSY. Completely revised and updated, the Second Edition features new material on the properties and distributions of isotopes, chemical shift anisotropy and quadrupolar interactions, Pake patterns, spin echoes, slice selection in NMR imaging, and a complete new chapter on the NMR spectroscopy of quadrupolar nuclei. New appendices have been included on Euler angles, and coherence selection by field gradients. As in the first edition, all material is heavily supported by graphics, much of which is new to this edition. Written for undergraduates and postgraduate students taking a first course in NMR spectroscopy and for those needing an up-to-date account of the subject, this multi-disciplinary book will appeal to chemical, physical, material, life, medical, earth and environmental scientists. The detailed physical insights will also make the book of interest for experienced spectroscopists and NMR researchers. • An accessible and carefully written introduction, designed to help students to fully understand this complex and dynamic subject • Takes a multi-disciplinary approach, focusing on basic principles and concepts rather than the more practical aspects • Presents a strong pedagogical approach throughout, with emphasis placed on individual spins to aid understanding • Includes numerous worked examples, problems, further reading and additional notes Praise from the reviews of the First Edition: "This is an excellent book... that many teachers of NMR spectroscopy will cherish... It deserves to be a ‘classic’ among NMR spectroscopy texts." NMR IN BIOMEDICINE "I strongly recommend this book to everyone...it is probably the best modern comprehensive description of the subject." ANGEWANDTE CHEMIE, INTERNATIONAL EDITION

Author: Richard B. Buxton
Publisher: Cambridge University Press
ISBN: 1139481304
Category : Medical
Languages : en
Pages : 479

View

Book Description
Functional Magnetic Resonance Imaging (fMRI) has become a standard tool for mapping the working brain's activation patterns, both in health and in disease. It is an interdisciplinary field and crosses the borders of neuroscience, psychology, psychiatry, radiology, mathematics, physics and engineering. Developments in techniques, procedures and our understanding of this field are expanding rapidly. In this second edition of Introduction to Functional Magnetic Resonance Imaging, Richard Buxton – a leading authority on fMRI – provides an invaluable guide to how fMRI works, from introducing the basic ideas and principles to the underlying physics and physiology. He covers the relationship between fMRI and other imaging techniques and includes a guide to the statistical analysis of fMRI data. This book will be useful both to the experienced radiographer, and the clinician or researcher with no previous knowledge of the technology.

Author: Robert Kraus Jr.
Publisher: Oxford University Press
ISBN: 0199796513
Category : Medical
Languages : en
Pages : 266

View

Book Description
This book is designed to introduce the reader to the field of NMR/MRI at very low magnetic fields, from milli-Tesla to micro-Tesla, the ultra-low field (ULF) regime. The book is focused on applications to imaging the human brain, and hardware methods primarily based upon pre-polarization methods and SQUID-based detection. The goal of the text is to provide insight and tools for the reader to better understand what applications are best served by ULF NMR/MRI approaches. A discussion of the hardware challenges, such as shielding, operation of SQUID sensors in a dynamic field environment, and pulsed magnetic field generation are presented. One goal of the text is to provide the reader a framework of understanding the approaches to estimation and mitigation of low signal-to-noise and long imaging time, which are the main challenges. Special attention is paid to the combination of MEG and ULF MRI, and the benefits and challenges presented by trying to accomplish both with the same hardware. The book discusses the origin of unique relaxation contrast at ULF, and special considerations for image artifacts and how to correct them (i.e. concomitant gradients, ghost artifacts). A general discussion of MRI, with special consideration to the challenges of imaging at ULF and unique opportunities in pulse sequences, is presented. The book also presents an overview of some of the primary applications of ULF NMR/MRI being pursued.