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Values for the cumulants calculated from dual-color PCHs with ɛA = ɛB = 0.21, 
and δ-values given below
| δ = 0 | δ = 0.001 | δ = 0.0025 | |
|---|---|---|---|
| κ10 = κ01 | 10 | 9.90 (−1%) | 9.75 (−3%) |
| κ20 = κ02 | 0.76 | 0.53 (−30%) | 0.22 (−71%) |
| κ11 | 0.76 | 0.73 (−4%) | 0.69 (−9%) |
The number in parentheses is the relative error between the ideal PCH (δ = 0) and deadtime-compromised PCHs (δ = 0.001 and δ = 0.0025). The second-order cumulant κ11 is much less affected by deadtime than the other second-order moments, κ20 and κ02.
