TABLE 2.

Reduced χ²-values obtained from fits of single- and dual-channel deadtime-affected PCHs to their respective ideal models

0.1	0.0	0.0
0.5	0.0	0.4
1.0	0.0	1.0
5.0	0.0	6.2
10.0	0.0	13.0

The values correspond to the δ = 0.0025 curves in Fig. 3 A. The histograms are generated from a model (Eq. 8) rather than experimentally obtained, so a reduced χ² ≤ 1 implies that the ideal PCH model describes the deadtime modified PCH. A reduced χ² > 1 implies that the ideal PCH model does not describe the deadtime PCH, which is the case for the more severely affected dual-channel PCHs (i.e., those with the highest concentrations). The number of data points used was 6 × 10⁶.