Pulsed NMR in the Rotating Frame of Reference

The interaction of the field B, with M is most easily seen in a system of coordinates x y z (Fig. 5.4.2b) which rotates around B0 at the Larmor fre- 

Modern NMR spectrometers use pulsing techniques to overcome the drawbacks inherent in the low sensitivity and natural abundance (1.1%) of the 3C nucleus. The B, field is applied as a brief ( 50pis) but intense rf pulse having sufficient power that during, time tp, it simultaneously excites the frequency range v0 l/tp. The effective B, power is such that 

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