UNC-CH Physics and Astronomy Master’s Presentation & Defense

Nick Bryden

“Design and construction of an ultra-low field NMR spectrometer “

We describe an NMR spectrometer operating in the ultra-low field strength regime possessing high spectral resolution and arbitrary RF pulse programming. A large emphasis is placed on instrument design and construction including the development of new LabVIEW software capable of executing complex pulse sequences. Magnetic field homogeneity and its effect on spectral resolution is also explored through both finite element simulations and experimental measurements. This work serves as a foundation for studies involving the relaxation of dissolved hyperpolarized xenon gas and ultimately dissolved phase imaging in the ultra-low field regime.