Beschreibung
Since the discovery of the nuclear magnetic resonance (NMR)
phenomenon, countless NMR techniques have been developed
that are today indispensable tools in physics, chemistry,
biology, and medicine. As one of the main obstacles in NMR is
its notorious lack of sensitivity, different hyperpolarization (HP)
methods have been established to increase signals up to several
orders of magnitude.
In this work, different aspects of magnetic resonance, using HP
noble gases, are studied, hereby combining different disciplines
of research. The first part examines new fundamental effects in
NMR of HP gases, in theory and experiment. The spin echo
signal, for example, shows an unexpected behavior under the
influence of fast diffusion. The second part is focused on the
development of a practical method to enhance the dissolution
process of HP 129Xe. Two different setups for application in
NMR spectroscopy and magnetic resonance imaging (MRI) are
presented.