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Figure 5
The average normalized intensity of the background (a) and diffraction spots (b), and the signal-to-noise ratio (c) as a function of exposure time and accelerating voltage. The error bars for the normalized background intensity indicate the standard deviation, or noise, of the background. Similarly, the error bars for the spot intensities indicate the standard deviation of the normalized intensity within the spot, which indicates the intensity range of the spot. The selected spots can be seen in Fig. 4 ![]() |
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