With Version 9.73 SPCM Software, the bh TCSPC / FLIM systems are able to record FLIM with bidirectional scanning. As usual, data recording is synchronised with the scanning by frame clock, line clock, and pixel clock pulses from the scanner. Each first line clock pulse indicates the beginning of a forward scan, each second one the beginning of a backward scan. The recording procedure automatically reverses the data from the backward scan and compensates for the line shift caused by the dynamic behaviour of the scanner. The FLIM data structure is the same as for unidirectional scanning. Thus, standard online intensity and lifetime display functions of the SPCM software are available, and data can be analysed by SPCImage as usual.
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