Using numerical optimization procedures it is shown that it is possible to design composite 180 degrees RF pulses for MAS NMR spectroscopy by explicitly taking into account the variation of the resonance offset of each crystallite during the application of the RF pulses. When using composite RF puls
Sample spinning at the magic angle with rotation-synchronized rf pulses
β Scribed by Y Yarim-Agaev; P.N Tutunjian; J.S Waugh
- Publisher
- Elsevier Science
- Year
- 1982
- Weight
- 559 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0022-2364
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Heteronuclear dipolar recoupling with rotational-echo doubleresonance (REDOR) is investigated in the rapid magic-angle spinning regime, where radiofrequency irradiation occupies a significant fraction of the rotor period (10 -60%). We demonstrate, in two model 13 C-15 N spin systems, [1-13 C, 15 N]
## Abstract ## Purpose: To revisit and illustrate the potential of a simple and effective multidimensional strayβfield imaging technique with magicβangle spinning, known as STRAFIβMAS. ## Materials and Methods: STRAFIβMAS images are acquired with a standard NMR magnet and a traditional magicβang