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Figure 3: The dependence of dicentrics plus centric rings (Dic + CR) recording rate on Dic + CR yield (Y_{dr}) in the sample during the fixed time microscopy for biological dosimetry. Each dot represents the values estimated during one round of fixed time microscopy. The pattern occurring at Y_{dr} ranged from 0 to 1.6 per cell is shown in detail on the additional plot. The linear regressions were constructed separately for two distinctive intervals of Y_{dr}: ≤1.6·per cell and >5·per cell; the latter corresponds to experimental points of homogeneous irradiations to 12 and 20 Gy. Within the latter cluster, the linear correlation was moderate: Dic + CR per min = 0.715 + 0.053 Y_{dr} (r = 0.492), meanwhile in the main dataset, the linear fit was stronger: Dic + CR per min = 0.080 + 0.367 Y_{dr} (r = 0,823). However, if zero values of Y_{dr} are replaced by the mean background yield value of 0.8 × 10^{3} per cell, then the dependence for Y_{dr} ≤1.6·per cell can be effectively approximated by a power function, shown on the plot 
