TOF

Time-of-flight measurements use the time that light or other particles require to traverse a certain distance. In LIDAR systems and in ToF cameras, the round-trip time of reflected light is used for depth-mapping a scene. In TOF mass spectrometers the mass-to-charge ratio of ions is determined by measuring the time the ion requires to reach a detector when accelerated by a known electric field. Modern TOF systems achieve mass accuracies of less than 1 ppm.

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