Figure 6
Integrated detector signal for a collection of single measurements (or pulse height distributions) for 200 V bias and low (a) and high (b) photon flux, 300 V bias with low (c) and high (d) photon flux, 350 V bias with low (e) and high (f) photon flux. The strong preamplifier gain amplifies the signal to its limiting value leading to the asymmetric pulse shape near 60 photons in (f) (see also Fig. 7). |