PMT Gain & Signal Calculator

Calculate PMT gain, cathode/anode current, SNR, and NEP in analog and photon counting modes.

Analog Mode
Gain & Sensitivity
Gain (G = δⁿ)
9.766e+6
Radiant sensitivity
80.645mA/W
Signal Currents
Cathode current (I_k)
80.645pA
Anode current (I_a)
787.6µA
Signal Quality
Analog SNR
440.0
NEP
1.811e-16W/√Hz
Abridged Optics — PMT Gain & Signal Calculator v1.0G = δⁿ. Analog SNR = I_k/√(2e(I_k+I_dk)·F·Δf). PC SNR = N_s/√(N_s+2N_d).

All information, equations, and calculations have been compiled and verified to the best of our ability. For mission-critical applications, we recommend independent verification of all values. If you find an error, please let us know.