Design of a Nanosecond Voltage Comparator with PECL Logic for a Photon-Counting Radiation Imaging System Application

Figure 10

Illustration of count loss under different source intensities with various V_ref. The count of the high intensity signals (blue curve) equals 1 under lower V_ref causing one count loss and equals 2 under higher V_ref, while for the low intensity signals (orange curve), the count is always 2 under these two V_ref.