Stored waveform inverse Fourier transform

IUPAC RECOMMENDATIONS 2013
Stored waveform inverse Fourier transform (SWIFT)
Technique to create excitation waveforms for ions in Fourier transform-ion cyclotron resonance-mass spectrometers or Paul ion traps. An excitation waveform in the time-domain is generated by taking the inverse Fourier transform of an appropriate frequency-domain programmed excitation spectrum, in which the resonance frequencies of ions to be excited are included. Note: This procedure may be used for selection of precursor ions in MSn experiments.
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Reference(s):
From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.
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