Signal-to-Noise Ratio (SNR) is a figure of merit that is used to describe how discernable the signal is from the noise.

In photon counting the SNR is calculated from the (Signal Counts)/ SQRT(2*Dark Counts + Signal). SNR degrades at high count rates due to pulse pileup.

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This simulation should be regarded as a reference only, no guarantee of detector performance is implied by the results of this simulation.

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