TABLE 1.

Deadtime and afterpulse probabilities of our detectors

	Instrument 1	Instrument 2
Afterpulse probability	qA = 0.002	qA = 0.007
	qB = 0.003	qB = 0.0046
Deadtime	τ†A = 50 ns	τ†A = 50 ns
	τ†B = 48 ns	τ†B = 51 ns

Although the deadtime is comparable for all detectors, the afterpulse probability varies significantly from detector to detector.