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Detective quantum efficiency DQE

DQE(0) = 0.6400

DQE(0)=SNRout2SNRin2\mathrm{DQE}(0)=\frac{\mathrm{SNR}_{\mathrm{out}}^2}{\mathrm{SNR}_{\mathrm{in}}^2}

DQE(f) = SNR_out² / SNR_in² = MTF²(f) / (u² NPS) × (incident quanta).

Laser