“Slow beats” in two-frequency spin echo
✍ Scribed by A. D. Gordeev; V. S. Grechishkin; E. M. Shishkin
- Book ID
- 112462378
- Publisher
- Springer US
- Year
- 1972
- Tongue
- English
- Weight
- 265 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0033-8443
No coin nor oath required. For personal study only.
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## Abstract The two‐frequency pulse response of a multilevel system in NQR is investigated. Additional spin echo signals are shown to appear. The application of the two‐frequency spin echo method to some of the crystals is demonstrated. The method is of great value for the investigation of local fi
Frequency-modulated rf pulses based on a linear frequency sweep are studied experimentally in spin-echo and stimulated-echo sequences. It turns out that these FM pulses generate a quadratic phase perpendicular to the selected slice and that the quadratic phases of the FM pulses in a spin-echo or sti