General phase modulation method for stored waveform inverse four

Radiant energy – Ionic separation or analysis – Methods

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250290, 250291, H01J 4926

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050139126

ABSTRACT:
A method for reducing the dynamic range of FT-ICR signal generated by the SWIFT technique includes the step of time shifting wave packets corresponding to segments of the Fourier spectral magnitude function to prevent coherent summing of the various frequency components of the excitation signal.

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"A New Method for Generating Swift Waveforms for FTMS", S. D. Goodman, Abstracts of 37th ASMS Conference on mass Spectrometry and Allied Topics, 1989.
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