Nuclear spin, magnetic resonance imaging

Nuclear magnetic resonance imaging and electron spin... [Pg.527]

The use of magnetic resonance imaging (MRI) to study flow patterns in reactors as well as to perform spatially resolved spectroscopy is reviewed by Lynn Gladden, Michael Mantle, and Andrew Sederman (University of Cambridge). This method allows even unsteady-state processes to be studied because of the rapid data acquisition pulse sequence methods that can now be used. In addition, MRI can be used to study systems with short nuclear spin relaxation times—e.g., to study coke distribution in catalytic reactors. [Pg.9]

Magnetic resonance imaging ultimately depends on the observation that nuclear particles, including protons, neutrons and electrons, have an intrinsic rotation or spin, creating an electromagnetic field. The magnetic fields... [Pg.211]

The presence of a magnetic dipole moment in many nuclei that have an intrinsic spin has found enormous application in nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI). NMR is extensively used in chemical laboratories to identify the structural and chemical environments of the nuclei in molecules, whereas MRI uses a tomographic technique to locate specific molecules... [Pg.49]

All the powerful methods of magnetic resonance, from solid-state nuclear magnetic resonance (NMR) to medical magnetic resonance imaging, depend on measuring the time evolution of a spin system following the application of one or more radio frequency pulses. In the visible and ultraviolet, ultrafast optical pulse sequences have been used for many years to measure both population dynamics and coherence phenomena. At low... [Pg.5]

Nuclear magnetic resonance (NMR) imaging [or magnetic resonance imaging (MRI)] and electron paramagnetic resonance (EPR) [or electron spin resonance (ESR)] utilize... [Pg.406]