Selection of Simultaneous Coherence Pathways with Gradient Pulses
β Scribed by A. Ross; M. Czisch; T.A. Holak
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 175 KB
- Volume
- 118
- Category
- Article
- ISSN
- 1064-1858
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π SIMILAR VOLUMES
A method for pathway selection in a multiple spin-echo pulse sequence applying crusher gradients before and after each pi pulse, to dephase unwanted pathways, is described. This method selects the only pathway that would contribute to the measurable signal if the pi pulses were perfect (1,-1,1,-1, e
The selection of well-defined coherence transfer pathways is an essential feature of all but the simplest NMR and EPR pulse sequences. This selection can be achieved by phase cycling and by pulsed field gradients. The properties of the RF-pulses (flip angle, offset effects, inhomogeneity) and transp
## Abstract Coherence pathway selection with gradients in carbonβdetected experiments is demonstrated. Gradient selection (gs) offers excellent suppression of artifacts and unwanted magnetization, and in practice the signalβtoβnoise ratio is at least as good as for the equivalent phase cycled exper