In NMR of spins with I = 1/2 in an isotropic phase, it is demonstrated by simulation and experiment that virtually unlimited bandwidths can be decoupled effectively by using chirp pulses with linear frequency modulation for adiabatic inversion combined with phase-cycles and supercycles similar to th
Optimized frequency/phase-modulated broadband inversion pulses
β Scribed by Toshimichi Fujiwara; Kuniaki Nagayama
- Publisher
- Elsevier Science
- Year
- 1990
- Weight
- 511 KB
- Volume
- 86
- Category
- Article
- ISSN
- 0022-2364
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π SIMILAR VOLUMES
## Abstract Optimization of constant amplitude broadband inversion pulses for maximum inversion over a range of multiple fields yields more regular pulses with better tolerance to __B__~1~ errors than those optimized for a single field. These multiβfrequency improved constant amplitude (MICA) pulse
It is shown how transverse magnetization can be excited with a single low-power radio-frequency pulse consisting of a superposition of two frequency-modulated components. The phase dispersion obtained with this self-refocusing pulse is very small over bandwidths that are far greater than the amplitu