Superconductiong-Giant MagnetoResistive Mixed Sensors for Nuclear Magnetic Resonance

Superconductiong-Giant MagnetoResistive Mixed Sensors for Nuclear Magnetic Resonance PDF Author: Hadrien Dyvorne
Publisher:
ISBN:
Category :
Languages : en
Pages : 190

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Book Description
L'objectif de cette étude est de détecter des signaux de Résonance Magnétique Nucléaire bas champ à l'aide d'un capteur mixte supraconducteur-MagnétoRésistance Géante, et d'accroître la sensibilité d'un tel capteur. Pour cela, une chaîne de détection basée sur des capteurs mixtes Supraconducteur-Spin Valve a été développée pour la détection de signaux radiofréquence. Des expériences de Résonance Magnétique Nucléaire ont été construites et testées pour la détection d'explosifs et pour l'imagerie des tissus aqueux. La possibilité de détection directe avec un capteur mixte a été démontrée sur des expériences de Résonance Quadripolaire Nucléaire d'explosifs et d'Imagerie par Résonance Magnétique de tissus aqueux. Les performances d'un capteur mixte ont été comparées à celles des bobines accordées sur chaque expérience, l'objectif étant de fournir grâce au capteur mixte un détecteur compétitif pour la Résonance Magnétique Nucléaire à bas champ.

Superconductiong-Giant MagnetoResistive Mixed Sensors for Nuclear Magnetic Resonance

Superconductiong-Giant MagnetoResistive Mixed Sensors for Nuclear Magnetic Resonance PDF Author: Hadrien Dyvorne
Publisher:
ISBN:
Category :
Languages : en
Pages : 190

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Book Description
L'objectif de cette étude est de détecter des signaux de Résonance Magnétique Nucléaire bas champ à l'aide d'un capteur mixte supraconducteur-MagnétoRésistance Géante, et d'accroître la sensibilité d'un tel capteur. Pour cela, une chaîne de détection basée sur des capteurs mixtes Supraconducteur-Spin Valve a été développée pour la détection de signaux radiofréquence. Des expériences de Résonance Magnétique Nucléaire ont été construites et testées pour la détection d'explosifs et pour l'imagerie des tissus aqueux. La possibilité de détection directe avec un capteur mixte a été démontrée sur des expériences de Résonance Quadripolaire Nucléaire d'explosifs et d'Imagerie par Résonance Magnétique de tissus aqueux. Les performances d'un capteur mixte ont été comparées à celles des bobines accordées sur chaque expérience, l'objectif étant de fournir grâce au capteur mixte un détecteur compétitif pour la Résonance Magnétique Nucléaire à bas champ.

Optical Magnetometry

Optical Magnetometry PDF Author: Dmitry Budker
Publisher: Cambridge University Press
ISBN: 1107010357
Category : Science
Languages : en
Pages : 431

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Book Description
Comprehensive coverage of the principles, technology and diverse applications of optical magnetometry for graduate students and researchers in atomic physics.

Giant Magnetoresistance (GMR) Sensors

Giant Magnetoresistance (GMR) Sensors PDF Author: Candid Reig
Publisher: Springer Science & Business Media
ISBN: 3642371728
Category : Technology & Engineering
Languages : en
Pages : 308

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Book Description
Since the discovery of the giant magnetoresistance (GMR) effect in 1988, spintronics has been presented as a new technology paradigm, awarded by the Nobel Prize in Physics in 2007. Initially used in read heads of hard disk drives, and while disputing a piece of the market to the flash memories, GMR devices have broadened their range of usage by growing towards magnetic field sensing applications in a huge range of scenarios. Potential applications at the time of the discovery have become real in the last two decades. Definitively, GMR was born to stand. In this sense, selected successful approaches of GMR based sensors in different applications: space, automotive, microelectronics, biotechnology ... are collected in the present book. While keeping a practical orientation, the fundamentals as well as the current trends and challenges of this technology are also analyzed. In this sense, state of the art contributions from academy and industry can be found through the contents. This book can be used by starting researchers, postgraduate students and multidisciplinary scientists in order to have a reference text in this topical fascinating field.

Ultra-Low Field Nuclear Magnetic Resonance

Ultra-Low Field Nuclear Magnetic Resonance PDF Author: Robert Kraus Jr.
Publisher: Oxford University Press
ISBN: 0199347883
Category : Medical
Languages : en
Pages : 266

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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.

Wide-range Nuclear-magnetic-resonance Detector Using Integrated Circuits

Wide-range Nuclear-magnetic-resonance Detector Using Integrated Circuits PDF Author: John C. Sturman
Publisher:
ISBN:
Category : Detectors
Languages : en
Pages : 36

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Book Description


17th International Conference on Biomagnetism Advances in Biomagnetism - Biomag 2010 - March 28 - April 1, 2010

17th International Conference on Biomagnetism Advances in Biomagnetism - Biomag 2010 - March 28 - April 1, 2010 PDF Author: Selma Supek
Publisher: Springer Science & Business Media
ISBN: 3642121977
Category : Technology & Engineering
Languages : en
Pages : 475

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Book Description
40th anniversary of "medical uses of SQUID" th It is my great pleasure and honor to invite you to the 17 International Conference on Biomagnetism – Biomag2010 held in Dubrovnik, Croatia from Sunday, March 28 through Thursday, April 1, 2010. The interdisciplinary field of biomagnetism includes dynamic and evolving SQUID-based technologies offering advanced real-time methods for noninvasive assessments of magnetic signals from the brain, heart and other organs as well as a range of modeling, mathematical and computational methods for functional source localization approaches. Excellent spatial resolution and unique, millisecond, temporal resolution of biomagnetic techniques allow insights into cortical neurodynamics and neurobiological basis of the human brain as well as assessment of heart and other organs functions in health and disease. Biomag2010 will be a great opportunity for an exchange of ideas and presentation of the latest developments in instrumentation, modeling approaches, basic and clinical biomedical studies. We are particularly proud to announce the celebration of the 40th anniversary of the first SQUID-based MCG measurements published on April 1, 1970. Since then ''medical uses of SQUID'' were dynamic and growing, including the most recent developments, in combination with a low field MRI, toward a ''direct neuronal imaging''. Dubrovnik, the host city of the Biomag2010, a jewel on the Adriatic, will be a superb and stimulating setting for both scientific and social aspects of this meeting. I am looking forward to hosting you in Dubrovnik, Croatia in spring of 2010.

Nuclear Magnetic Resonance Spectroscopy Using a Superconducting Quantum Interference Device

Nuclear Magnetic Resonance Spectroscopy Using a Superconducting Quantum Interference Device PDF Author: Jeffrey David Mason
Publisher:
ISBN:
Category :
Languages : en
Pages : 132

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Book Description


Nuclear Magnetic Resonance in Superconducting Tin

Nuclear Magnetic Resonance in Superconducting Tin PDF Author: Gaylord Marvin Androes
Publisher:
ISBN:
Category : Nuclear induction
Languages : en
Pages : 162

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Book Description


Colloidal Metal Oxide Nanoparticles

Colloidal Metal Oxide Nanoparticles PDF Author:
Publisher: Elsevier
ISBN: 0128133589
Category : Technology & Engineering
Languages : en
Pages : 612

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Book Description
Colloidal Metal Oxide Nanoparticles: Synthesis, Characterization and Applications is a one-stop reference for anyone with an interest in the fundamentals, synthesis and applications of this interesting materials system. The book presents a simple, effective and detailed discussion on colloidal metal oxide nanoparticles. It begins with a general introduction of colloidal metal oxide nanoparticles, then delves into the most relevant synthesis pathways, stabilization procedures, and synthesis and characterization techniques. Final sections discuss promising applications, including bioimaging, biosensing, diagnostic, and energy applications—i.e., solar cells, supercapacitors and environment applications—i.e., the treatment of contaminated soil, water purification and waste remediation. - Provides the most comprehensive resource on the topic, from fundamentals, to synthesis and characterization techniques - Presents key applications, including biomedical, energy, electronic and environmental - Discusses the most relevant techniques for synthesis, patterning and characterization

Nuclear Magnetic Resonance Studies of the High Temperature Superconductors in the Normal and Superconducting States

Nuclear Magnetic Resonance Studies of the High Temperature Superconductors in the Normal and Superconducting States PDF Author: Nicholas James Curro
Publisher:
ISBN:
Category :
Languages : en
Pages : 418

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Book Description