Time-lag focusing

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Time-lag focusing (TLF)
Energy focusing of ions formed in the gas phase in a time-of-flight mass spectrometer that is accomplished by introducing a time delay between the formation of the ions and the application of the accelerating potential pulse.
Related Term(s): delayed extraction

W. C. Wiley, I. H. McLaren. Rev. Sci. Instrum. 26, 1150 (1955). (http://dx.doi.org/10.1063/1.1715212 )

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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