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Resonance Magnetique Nucleaire A Squid
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Book Synopsis Ultra-Low Field Nuclear Magnetic Resonance by : Robert Kraus Jr.
Download or read book Ultra-Low Field Nuclear Magnetic Resonance written by Robert Kraus Jr. and published by Oxford University Press. This book was released on 2014-02-26 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis SQUID '85 Superconducting Quantum Interference Devices and their Applications by : Hans-D. Hahlbohm
Download or read book SQUID '85 Superconducting Quantum Interference Devices and their Applications written by Hans-D. Hahlbohm and published by Walter de Gruyter. This book was released on 2012-02-13 with total page 1296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Françoise, Christian Publisher :Université d'Ottawa = University of Ottawa, [198-?] ISBN 13 : Total Pages : pages Book Rating :4.:/5 (872 download)
Book Synopsis Résonance magnétique nucléaire entre 4.2 et 1.2 K à l'aide d'un squid [microforme] by : Françoise, Christian
Download or read book Résonance magnétique nucléaire entre 4.2 et 1.2 K à l'aide d'un squid [microforme] written by Françoise, Christian and published by Université d'Ottawa = University of Ottawa, [198-?]. This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Résonance magnétique nucléaire entre 4.2 et 1.2 K à l'aide d'un squid by : Christian Francoise
Download or read book Résonance magnétique nucléaire entre 4.2 et 1.2 K à l'aide d'un squid written by Christian Francoise and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The SQUID Handbook written by John Clarke and published by John Wiley & Sons. This book was released on 2006-12-13 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume handbook offers a comprehensive and coordinated presentation of SQUIDs (Superconducting Quantum Interference Devices), including device fundamentals, design, technology, system construction and multiple applications. It is intended to bridge the gap between fundamentals and applications, and will be a valuable textbook reference for graduate students and for professionals engaged in SQUID research and engineering. It will also be of use to specialists in multiple fields of practical SQUID applications, from human brain research and heart diagnostics to airplane and nuclear plant testing to prospecting for oil, minerals and buried ordnance. While the first volume presents the theory and fabrication of SQUIDs, the second volume is devoted to applications. It starts with an important aspect of the analysis of measured magnetic signals generated by current sources (the inverse problem), and includes several chapters devoted to various areas of application, namely biomagnetism (research on and diagnostics of human brain, heart, liver, etc.), detection of extremely weak signals, for example electromagnetic radiation and Nuclear Magnetic Resonance. The volume closes with a chapter on motion detectors and the detection of gravity waves.
Book Synopsis Résonance magnétique nucléaire à SQUID by : Gae͏̈l Paquignon
Download or read book Résonance magnétique nucléaire à SQUID written by Gae͏̈l Paquignon and published by . This book was released on 2001 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: La technique de Résonance Magnétique (RMN) à SQUID longitudinale est plus sensible que la RMN classique à basse fréquence. Elle permet donc plus facilement d'étudier des monocristaux métalliques et des supraconducteurs à faible champ critique supérieur. Nous avons mis au point un dispositif spécialement adapté à l'étude des noyaux d'hydrogènes dans le supraconducteur organique (TMTSF)2 CIO 4.Cette étude nous a conduit à faire une avancée significative dans le débat sur la supraconductivité exotique de cette famille de sels de Bechgaard. En effet, nous observons simultanément une variation du temps de relaxation T 1 et du Knight shift à transition supraconductrice, ce qui tend à prouver que l'appariement de spins est de type singulet. D'autre part, nos mesures de Résonance Quadrupolaire Nucléaire en champ faible sur le noyau 11 B dans un monocristal de YbNi2B2C ont montré que le comportement à basse température n'était pas celui d'un liquide de Fermi, contredisant des résultats précédents. Des mesures complémentaires ont été réalisées et une transition magnétique a été observée en susceptibilité alternative à T0=60 mK, ainsi qu'en susceptibilité dc et en chaleur spécifique. Le rapport C/T en chaleur spécifique est élevé et confère à ce composé des caractéristiques de "fermion lourd". Aucune transition de phase supraconductrice n'est observée jusqu'à 7 mK en résistivité, qui montre une dépendance en température typique des composés non-liquide de Fermi.
Book Synopsis Advances in Magnetic and Optical Resonance by : Warren S. Warren
Download or read book Advances in Magnetic and Optical Resonance written by Warren S. Warren and published by Academic Press. This book was released on 2013-10-22 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Magnetic and Optical Resonance, Volume 15 focuses on the quantitative mathematical treatments of the nuclear magnetic resonance (NMR). This book discusses the iterative methods in the design of pulse sequences for NMR excitation; fixed point theory of iterative schemes; electron-nuclear polarization transfer in the nuclear rotating frame; and LF-and RF-DNP in doped polystyrene. The multipole NMR; solid state and solution NMR of non-classical transition metal polyhydrides; and dihydrogen complexes are also elaborated. This text likewise covers the quantum mechanical exchange in polyhydrides; low-frequency magnetic resonance with a dc SQUID and operating principles of the SQUID detector. This publication is a good source for students and researchers concerned with the application of NMR.
Download or read book The SQUID Handbook written by John Clarke and published by Wiley-VCH. This book was released on 2006-03-06 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume handbook offers a comprehensive and well coordinated presentation of SQUIDs (Superconducting Quantum Interference Devices), including device fundamentals, design, technology, system construction and multiple applications. It is intended to bridge the gap between fundamentals and applications, and will be a valuable textbook reference for graduate students and for professionals engaged in SQUID research and engineering. It will also be of use to specialists in multiple fields of practical SQUID applications, from human brain research and heart diagnostics to airplane and nuclear plant testing to prospecting for oil, minerals and buried ordnance. The first volume contains chapters presenting the theory of SQUIDs, their fabrication from low- and high-temperature superconductors, the necessary readout electronics, and the design and performance of practical direct current (dc) and radio-frequency (rf) SQUIDs. This volume concludes with an overview of the most important SQUID system issues. An appendix summarizes briefly the foundations of superconductivity that are necessary to understand SQUIDs. A glossary and tables of units and constants are also included. The second volume of the handbook will deal with applications of SQUIDs and SQUID systems.
Book Synopsis Refrigeration science and technology by :
Download or read book Refrigeration science and technology written by and published by . This book was released on 1986 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low Frequency Magnetic Resonance with a Dc SQUID by : Chuck Connor
Download or read book Low Frequency Magnetic Resonance with a Dc SQUID written by Chuck Connor and published by . This book was released on 1989 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : W. H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing. house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 25 (thesis year 1980) a total of 10,308 theses titles from 27 Canadian and 214 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. While Volume 25 reports theses submitted in 1980, on occasion, certain universities do report theses submitted in previous years but not reported at the time.
Book Synopsis NOUVELLE EXPERIENCE DE RESONANCE MAGNETIQUE NUCLEAIRE (RMN) A BAS CHAMP ET TRES BASSE TEMPERATURE DETECTEE PAR UN SQUID by : MARTIN.. WURM
Download or read book NOUVELLE EXPERIENCE DE RESONANCE MAGNETIQUE NUCLEAIRE (RMN) A BAS CHAMP ET TRES BASSE TEMPERATURE DETECTEE PAR UN SQUID written by MARTIN.. WURM and published by . This book was released on 1997 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'EXPERIENCE A ETE CONCU POUR L'ETUDE DE LA SUPRACONDUCTIVITE DANS DES SYSTEMES A FERMIONS LOURDS, QUI EST PROBABLEMENT DE NATURE NON CONVENTIONNELLE. LEURS PROPRIETES PHYSIQUES DEPENDENT FORTEMENT DE LA QUALITE DES ECHANTILLONS, C'EST POURQUOI ON ETUDIE DES MONOCRISTAUX DE HAUTE QUALITE. A CAUSE DE LA LONGUEUR DE PENETRATION FINIE DE LA RADIOFREQUENCE DANS LES METAUX CECI NECESSITE DE TRAVAILLER A DES FREQUENCES 100KHZ. C'EST DIFFICILE AVEC DES METHODES CONVENTIONNELLES DE RMN, BIEN ADAPTEES POUR DES FREQUENCES TYPIQUES DE >10 MHZ. ET A 100 KHZ, UNE DETECTION A SQUID DEVIENT PLUS SENSIBLE QUE LES METHODES CONVENTIONNELLES. LA PLUS GRANDE PARTIE DE CE TRAVAIL A ETE LA MISE AU POINT DE L'EXPERIENCE. IL A FALLU TROUVER LA GEOMETRIE LA MIEUX ADAPTEE, ECRANTER L'EXPERIENCE DES PERTURBATIONS ELECTROMAGNETIQUES ET DIMINUER LE BRUIT CAUSE PAR LES VIBRATIONS. UNE AUTRE DIFFICULTE EST VENUE DE L'INEVITABLE PARAMAGNETISME DES MATERIAUX DE CONSTRUCTION. IL IMPOSE UNE EXCELLENTE STABILITE EN TEMPERATURE ET D'AUTRES PRECAUTIONS POUR EVITER LES ECHAUFFEMENTS PAR LA RADIOFREQUENCE. DANS NOTRE EXPERIENCE DE RMN A SQUID ON DETECTE LA RELAXATION LONGITUDINALE DE L'AIMANTATION D'UN ECHANTILLON APRES UNE EXCITATION SELECTIVE DES NOYAUX A LA FREQUENCE DE LARMOR (AVEC LES METHODES CONVENTIONNELLES ON UTILISE UNE DETECTION RESONANTE A CETTE FREQUENCE POUR MESURER LA COMPOSANTE TRANSVERSE DE L'AIMANTATION NUCLEAIRE). LA MESURE DU TEMPS DE RELAXATION SPIN-RESEAU EST PAR CONSEQUENT DIRECTE ET LE TEMPS DE DEPHASAGE TRANSVERSE (T#2) N'INFLUENCE PAS LA MESURE. NOTRE EXPERIENCE EST ENTIEREMENT CONTROLEE PAR ORDINATEUR ET PERMET LA MESURE DE T#1 ET DE LA FORME DE RAIE AUTOMATIQUEMENT EN FONCTION DE LA TEMPERATURE DANS UN CHAMP MAGNETIQUE FIXE. LES RESULTATS SUR LES ECHANTILLONS DE TEST MONTRENT BIEN QUE LA SENSIBILITE DU NOUVEAU MONTAGE EST SUFFISANTE POUR L'ETUDE DE MONOCRISTAUX DE SYSTEMES A FERMIONS LOURDS ET A NOTRE CONNAISSANCE, ELLE EST INEGALEE DANS LA LITTERATURE.
Download or read book SQUID Sensors written by Harold Weinstock and published by Springer Science & Business Media. This book was released on 1996 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sixteen proceedings papers from the June 1995 conference presenting a "one of a kind" examination of SQUID technology, its uses, interpretations, and applications. The contributors outline SQUID fundamentals, advanced squid read-out electronics, gradiometers in real environments, DC SQUID design, the fabrication of high temperature magnetometers, pulse tube refrigerators, high-resolution magnetic imaging, biomagnetism, magnetocardiography, neuromagnetism and its clinical applications, superconducting magnetic gradiometers for mobile applications, the use of SQUIDs for nondestructive evaluation, and the magnetic inverse problem for NDE. Includes a glossary, photographs, tables and graphs. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis Dc SQUID Detection of New Magnetic Resonance Phenomena by : Tycho Sleator
Download or read book Dc SQUID Detection of New Magnetic Resonance Phenomena written by Tycho Sleator and published by . This book was released on 1986 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nuclear Magnetic Resonance Experiments with Dc SQUID Amplifiers by : Michael Benedict Heaney
Download or read book Nuclear Magnetic Resonance Experiments with Dc SQUID Amplifiers written by Michael Benedict Heaney and published by . This book was released on 1990 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low-frequency Nuclear Quadrupole Resonance with Dc SQUID by : Jih-Wen Chang
Download or read book Low-frequency Nuclear Quadrupole Resonance with Dc SQUID written by Jih-Wen Chang and published by . This book was released on 1991 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindeks written by and published by . This book was released on 1986 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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