* Correction introduced for the saturation effect of the firing pixel population. When an appreciable fraction of available pixels are firing, the possibility of a photon hitting a firing pixel can no longer be neglected. This can be expressed as hollows: | * Correction introduced for the saturation effect of the firing pixel population. When an appreciable fraction of available pixels are firing, the possibility of a photon hitting a firing pixel can no longer be neglected. This can be expressed as hollows: |