Novel Gradient Coils PDF Download
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Author: Silvia Sandra Hidalgo-Tobon
Publisher:
ISBN:
Category : Electric coils
Languages : en
Pages : 322
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Book Description
Author: Silvia Sandra Hidalgo-Tobon
Publisher:
ISBN:
Category : Electric coils
Languages : en
Pages : 322
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Book Description
Author: Silvia Hidalgo-Tobon
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659610257
Category :
Languages : en
Pages : 172
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Book Description
This work describes three new developments in the design and use of gradient coils in MRI. A novel gradient coil, consisting of folded loop current path has been developed. In this design, the current return paths for the inner coil are folded over onto the outer screening coil and both coils have the same length. This sort of design will potentially allow more efficient short coils with better screening to be designed. Mathematical expressions for the magnetic field produced by such coils have been developed and tested by comparison with the results of field calculations based on the elemental form of the Biot-Savart expression. A small prototype coil has been built and tested. The field variation which it produces is in good agreement with that calculated from the wire paths.
Author: Stefan Kroboth
Publisher:
ISBN:
Category :
Languages : de
Pages :
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Book Description
Author: Peter Blümler
Publisher: John Wiley & Sons
ISBN: 3527611835
Category : Science
Languages : en
Pages : 774
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Book Description
'Spatially Resolved Magnetic Resonance' provides comprehensive and exhaustive coverage of the state of the art in magnetic resonance imaging. Focusing on nonclinical applications, readers learn about the possibilities, limitations and strengths of magnetic resonance methods in a broad range of fields, from materials science, medicine, biology, to geology and ecology. New and innovative applications such as polymer and elastomer characterization, analysis of construction materials and material flow, biomedical imaging and plant studies document the significant advances being made in this field. Newcomers will find the tutorial chapter an excellent guide to the fundamentals of magnetic resonance. Based on lectures presented at the Fourth International Conference on Magnetic Resonance Microscopy held in Albuquerque, New Mexico, in October 1997, all chapters have been carefully edited and reviewed. Chemists, physicists, materials scientists, geologists, and life-scientists who wish to assess the potential of magnetic resonance imaging will find this reference a stimulating and exhaustive resource. 'This volume documents a long stride toward maturation and integration, along with the ever increasing power and subtlety of techniques and analyses, and should inspire developers and users in all areas, from medicine to geology.' Paul C. Lauterbur
Author: Andrew G Webb
Publisher: Royal Society of Chemistry
ISBN: 1782623590
Category : Medical
Languages : en
Pages : 402
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Book Description
Magnetic resonance systems are used in almost every academic and industrial chemistry, physics and biochemistry department, as well as being one of the most important imaging modalities in clinical radiology. The design of such systems has become increasingly sophisticated over the years. Static magnetic fields increase continuously, large-scale arrays of receive elements are now ubiquitous in clinical MRI, cryogenic technology has become commonplace in high resolution NMR and is expanding rapidly in preclinical MRI, specialized high strength magnetic field gradients have been designed for studying the human connectome, and the commercial advent of ultra-high field human imaging has required new types of RF coils and static shim coils together with extensive electromagnetic simulations to ensure patient safety. This book covers the hardware and engineering that constitutes a magnetic resonance system, whether that be a high-resolution liquid or solid state system for NMR spectroscopy, a preclinical system for imaging animals or a clinical system used for human imaging. Written by a team of experts in the field, this book provides a comprehensive and instructional look at all aspects of current magnetic resonance technology, as well as outlooks for future developments.
Author: Yoseph Shiferaw
Publisher:
ISBN:
Category :
Languages : en
Pages : 174
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Book Description
Author: Jianming Jin
Publisher: CRC Press
ISBN: 9780849396939
Category : Medical
Languages : en
Pages : 316
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Book Description
This book presents a comprehensive treatment of electromagnetic analysis and design of three critical devices for an MRI system - the magnet, gradient coils, and radiofrequency (RF) coils. Electromagnetic Analysis and Design in Magnetic Resonance Imaging is unique in its detailed examination of the analysis and design of the hardware for an MRI system. It takes an engineering perspective to serve the many scientists and engineers in this rapidly expanding field. Chapters present: an introduction to MRI basic concepts of electromagnetics, including Helmholtz and Maxwell coils, inductance calculation, and magnetic fields produced by special cylindrical and spherical surface currents principles for the analysis and design of gradient coils, including discrete wires and the target field method analysis of RF coils based on the equivalent lumped-circuit model as well as an analysis based on the integral equation formulation survey of special purpose RF coils analytical and numerical methods for the analysis of electromagnetic fields in biological objects With the continued, active development of MRI instrumentation, Electromagnetic Analysis and Design in Magnetic Resonance Imaging presents an excellent, logically organized text - an indispensable resource for engineers, physicists, and graduate students working in the field of MRI.
Author: Tanvir Noor Baig
Publisher:
ISBN: 9781109834338
Category :
Languages : en
Pages : 186
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Book Description
Energy efficient capped actively shielded elliptical gradient coils are also designed. In comparison with traditional uncapped elliptical designs the newly proposed design substantially reduces the fringe field at the inner cryostat bore. And compared to a cylindrical design (with a diameter matched to the elliptical semi-major axis), a good reduction in magnetic energy is observed.
Author: Peter Stilbs
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110551659
Category : Technology & Engineering
Languages : en
Pages : 462
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Book Description
Diffusion and Eletrophoretic NMR experiments resolve chemical compounds based on their molecular motion. This publication introduces the basics of these methods and explains how they can be used to measure the size of molecules and aggregates, to determine degree of polymerization and to solve other chemical problems. Supplied with many case studies, the book is a must-have for students and researchers who work with practical NMR measurements.
Author: Donald W. McRobbie
Publisher: Cambridge University Press
ISBN: 1316688259
Category : Medical
Languages : en
Pages : 405
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Book Description
MR is a powerful modality. At its most advanced, it can be used not just to image anatomy and pathology, but to investigate organ function, to probe in vivo chemistry, and even to visualise the brain thinking. However, clinicians, technologists and scientists struggle with the study of the subject. The result is sometimes an obscurity of understanding, or a dilution of scientific truth, resulting in misconceptions. This is why MRI from Picture to Proton has achieved its reputation for practical clarity. MR is introduced as a tool, with coverage starting from the images, equipment and scanning protocols and traced back towards the underlying physics theory. With new content on quantitative MRI, MR safety, multi-band excitation, Dixon imaging, MR elastography and advanced pulse sequences, and with additional supportive materials available on the book's website, this new edition is completely revised and updated to reflect the best use of modern MR technology.
