Useful manipulations of the free induction decay
β Scribed by A.A Bothner-By; J Dadok
- Publisher
- Elsevier Science
- Year
- 1987
- Weight
- 269 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0022-2364
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π SIMILAR VOLUMES
## Abstract The orientation dependence of the free induction decay (FID) of ^1^H NMR water signal in ex vivo bovine digital flexor tendon at the native level of hydration is reported. Residual dipolar coupling due to the overall tissue anisotropy produces a 6:1 change in the signal intensity as an
## Abstract A novel pulse sequence for acquiring a stimulated spin echo (SSE) is devised and implemented to recover the initial portion of the signal that is usually blanked or distorted in MRI using free induction decays (FIDs). The receiverβphase offset, center of the __k__βspace, and time frame
The shape of the free induction decay for the case in which the amplitude B, (B, = 0,/y) of the RF pulse is comparable with local magnetic fields at sites of the nuclei is considered. It is shown that the shape of the FID G(r + T) (where T is the width of a RF pulse, t is the time after a RF pulse)
Experiments are described that elucidate the quantum mechanical origins of the free induction decay voltage and of spin noise. It is shown that the experimentally measured FID voltage induced in a Hertzian loop receiving coil following a 90 degrees pulse is typically two orders of magnitude too larg