Nuclear magnetic resonance (NMR) in pulsed magnetic fields is measured by recording data in the maximum regime of the field pulse during a typical time window of several ms. Usually, several FIDs or echoes can be recorded during one field pulse.
The experiment is mostly performed in magnet type A, but can also be installed in magnet types B, D, and E, with a typical field homogeneity of about 500 ppm over 5 mm DSV.
The available frequency range is 100 – 3000 MHz with at least 200 W pulse power over the whole band. Temperatures between 2.0 – 300 K are accessible via bath or flow-type cryostats.
27Al FIDs of metallic aluminum (strong signal) and Linde type A zeolite (weaker signal), excited at different times tRF near the field maximum of 55.7 T .
Averaging of 27Al spectra of metallic aluminum (left) and Linde type A zeolite (right) at 55.7 T after correction for effects of the time-dependent field .
For more details, see also