Fig. 4: Noise performance.
a Effective noise as a function of calibration gain \({{\mathcal{G}}}\), of four iLGADs samples of both standard and shallow variations, compared to a conventional silicon sensor. The data points are fitted with a function y = a/x, as the Effective Noise is expected to have an inverse relation with the calibration gain \({{\mathcal{G}}}\). For the data points two different settings of the EIGER ASIC are used, differentiated in the plot by filled or empty markers. b Noise reduction factor as a function of the LGAD multiplication factor M, with respect to a conventional silicon sensor, for the four iLGADS samples of both variations. The dashed line indicates the ideal case where the noise reduction scales linearly with M; the data points fall below this trend and are tabulated in the Supplementary Table 1. In both plots, the error bars indicate the standard deviation of the pixel distribution.
