UID:
almahu_9947357735802882
Format:
1 online resource (505 p.)
Edition:
1st ed.
ISBN:
1-78262-837-1
Series Statement:
New Developments in NMR, Number 4
Content:
Providing the first comprehensive book on the current state of hyperpolarized Xenon-129 NMR and MRI, this book is guaranteed to appeal to a wide range of scientists in the biomedical field and materials sciences.
Note:
Description based upon print version of record.
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Cover; Preface; Contents; Chapter 1: Xenon as a Probe Atom: Introduction, Characteristics, Investigation of Microporous Solids; 1.1 Introduction; 1.2 Zeolites with a Single Type of Void Volume. Study of the Pore Structure; 1.2.1 Notion of the Mean Free Path; 1.2.2 Influence of the Temperature and of the Surface Composition; 1.2.3 Theoretical Models; 1.3 Complex Zeolite Structures; 1.3.1 Pure Zeolites; 1.3.2 Mixtures of Zeolites. Structural Defects. Crystallisation; 1.4 Influence of the Compensating Cations; 1.4.1 Divalent Cations with d° Electronic Structure
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1.4.2 Cations with dx Electronic Structure (x〉0)1.4.3 Other Charged Species; 1.5 Influence of Metal Particles Localized in Zeolite Pores; 1.6 Influence of Co-adsorbed Molecules. Zeolite Poisoning; 1.7 Other Types of Microporous Solids; 1.7.1 Clays; 1.7.2 Heteropolyoxometalate Salts (HPOM); 1.7.3 Metal-Organic Frameworks (MOFs); 1.7.4 Microporous Carbons; 1.8 Conclusion; Acknowledgments; References; Chapter 2: The Xenon Chemical Shift and Chemical Shift Anisotropy; 2.1 Scope and Emphasis; 2.2 The Xe Chemical Shift under Conditions of Isotropic Averaging
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2.2.1 The Xe Chemical Shift in Pure Xe Gas2.2.2 The Chemical Shift of the Single Xe Atom as a Probe of the Physical System; 2.3 The Intermolecular Xe Chemical Shift Tensor of Confined Xe; 2.3.1 One Xe Atom as a Probe of Anisotropic Spaces in the Solid State; 2.3.2 Xe-Xe Interactions as a Probe of Anisotropic Spaces in the Solid State; 2.4 The Chemical Shifts of Xen in a Cage Reveal Distributions in Porous Materials; 2.4.1 Xen in Zeolite NaA, KA and AgA; 2.4.2 Xe in Competitive Physical Adsorption in Zeolite NaA; 2.4.3 Xe in Exchange among Multiple Environments; 2.5 Conclusions; References
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Chapter 3: Spin Exchange Optical Pumping (SEOP) - Concepts and Practical Considerations3.1 Overview; 3.2 A Few Words about Pressure and Gas Density Units; 3.3 The Definition and Measurement of Nuclear Spin Polarization P; 3.4 Optimizing Spin Exchange Optical Pumping; 3.4.1 SEOP Pressure and Noble Gas Mole Fraction; 3.4.2 Radiation Trapping; 3.4.3 Laser Power and Laser Linewidth; 3.4.4 Time Dependence of the Nuclear Spin Polarization P(t); 3.5 Cryogenic-free Production of hp Noble Gases; 3.5.1 Cryogenic hp Gas Separation; 3.5.2 The Apparent Polarization Papp
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3.5.3 Extraction and Compression of hp Noble Gases after SEOP3.6 Methane as a Buffer Gas in 129Xe SEOP; 3.7 Conclusion; References; Chapter 4: Optimization of Pump Cells: Simulation and Experiments; 4.1 Introduction; 4.2 The Optical Pumping Process of Rubidium: Where does the Laser Power Go?; 4.3 Rb-Xe Spin Exchange; 4.4 Static Pump Cells; 4.5 Continuous-Flow Pump Cells; References; Chapter 5: Large Volume and Continuous Flow Hyperpolarization; 5.1 Introduction; 5.2 Materials and Methods; 5.3 Results and Discussion; References
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Chapter 6: Spin-exchange Optical Pumping at High Xenon Densities and Laser Fluxes: Principles and Practice
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English
Additional Edition:
ISBN 1-84973-889-0
Language:
English
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