ArticleMagnetic resonance in chemistry : MRC2012
Broadband excitation pulses for high-field solid-state nuclear magnetic resonance spectroscopy.
Article in Magnetic resonance in chemistry : MRC, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Maximizing efficiency of dipolar recoupling in solid-state NMR using optimal control sequences.Science advances · 2021Article
- Improving dipolar recoupling for site-specific structural and dynamics studies in biosolids NMR: windowed RN-symmetry sequences.Physical chemistry chemical physics : PCCP · 2016Article
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3 authors.
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Abstract
In nuclear magnetic resonance spectroscopy, experimental limits due to the radiofrequency transmitter and/or coil means that conventional radiofrequency pulses ("hard pulses") are sometimes not sufficiently powerful to excite magnetization uniformly over a desired range of frequencies. Effects due to nonuniform excitation are most frequently encountered at high magnetic fields for nuclei with a large range of chemical shifts. Using optimal control theory, we have designed broadband excitation pulses that are suitable for solid-state samples under magic-angle-spinning conditions. These pulses are easy to implement, robust to spinning frequency variations, and radiofrequency inhomogeneities, and only four times as long as a corresponding hard pulse. The utility of these pulses for uniformly exciting (13) C nuclei is demonstrated on a 900 MHz (21.1 T) spectrometer.
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