Fig. 5.

The top row displays the distance error plotted against detected count-rate level for an NN trained with data from the lowest detected count-rate level and then applied to data acquired at varying count rates for (a) (PMMA, Al) test combinations and (b) test materials. The bottom row displays the distance error resulting from NNs trained specifically for each count-rate level for (c) (PMMA, Al) test combinations and (b) test materials. The plotted points represent the median distance error across all detector elements and trials, while the error bars represent the upper and lower quartiles.