It has been found in experiments that the NMR signal intensity of the proton in water increases linearly with the pulse flip angle 0, (Bc T, (where T, is the radiation damping time). Thus for a fairly strong magnetization, the maximum peak height cannot be obtained with a x/2 pulse, but with a pulse
Radiation damping effects on NMR signal intensities
β Scribed by Xi-an Mao; Dong-hui Wu; Chao-hui Ye
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 362 KB
- Volume
- 204
- Category
- Article
- ISSN
- 0009-2614
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## Abstract For Abstract see ChemInform Abstract in Full Text.
The effects of macroscopic background gradients due to susceptibility differences at the sample interfaces and of radiation damping on pulsed-gradient spin-echo (PGSE) experiments are examined. Both phenomena can lead to the seemingly strange effect of the echo signal growing as the gradient strengt
Radiation damping effects in NMR spin-lattice relaxation experiments have been studied. After an inversion, a damped spin system recovers to the equilibrium state under the influence of radiation damping rather than through a relaxation process. Therefore, the spin-lattice relaxation time cannot be