Probeheads acoustic ringing

Observation of low-frequency quadrupolar nuclei with very broad resonances. Sequence suppresses acoustic ringing responses from probehead. 

Figure 4.36. O spectra of ethyl acetate recorded (a) with and (b) without the RIDE sequence. The severe baseline distortion in (b) arises from acoustic ringing in the probehead. Spectrum (c) was from the same FED of (b) but this had the first 10 data points replaced with backward linear predicted points, computed from 256 uncorrupted points. The spectra are referenced to D2O and processed with 100 Hz line-broadening.

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