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Figure 4
Dark current (DC) of (a) the upstream, (b) the first downstream and (c) the second downstream ion chamber versus time with uncertainties obtained from ten repetitions of measurements. A slightly increasing linear function has been fitted to the experimental measurements of the upstream ion chamber with [\chi^{2}_{r}] of 3. DC measurements of the first downstream ion chamber were linearly fitted with [\chi^{2}_{r}] of 1 across two ranges of time. DC of the second downstream ion chamber were fitted with a [\chi^{2}_{r}] of 1.4. Fitted data are plotted in red.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
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