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TOF Mass Spectrometer (Time of Flight)

Principle:  Different amount of time is required for ions of different m/e ratio to travel identical path from ion source to collector.

If L is the length of the drift tube in cm and t is transit time (Flight Time) in microseconds, for singly charged ions of mass m and constant energy Ve, then




Typically flight times are 1 to 50 microseconds. 

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