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Figure 4
Intensity fluctuation observed in the C mode. (a) A typical intensity fluctuation observed with the CMOS camera. Squares are the integrated beam intensity and the red curves are the simulated intensity based on a decay time constant of 60 ns and dead-time of 210 ns. At the beginning and the end of the 45 µs opening the edges of the slit in the rotating disc move across the X-ray beam, making frames with intermediate intensity. (b) Schematic diagram showing how the intensity fluctuation is created.

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ISSN: 1600-5775
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