Observation and comparison of the curve side slopes of the histograms obtained in various runs. Each run is related to a different incidence position of the beam (see Figure 3). (a) Results for the Olho_S0 program; (b) Results for the Olho_S1 program. Simulation details: D5 detector; 200 million photons simulated in each run. Data processing details: csaps cubic smoothing spline, smoothing parameter p = 0.01; number of data points for linear regression: 21; height of the midpoint: 40%.