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The ratio of the photons converted to signal generating electrons to the total number of photons arriving is called as?

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The ratio of the photons converted to signal generating electrons to the total number of photons arriving is called as?

(a) Quantum efficiency

(b) Photon ratio

(c) Conversion ratio

(d) Photons to electron ratio

The question was posed to me in final exam.

This question is from Stellar Sensor Design in portion Celestial Navigation, Doppler and Altimeter Radars of Avionics

1 Answer

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Correct answer is (a) Quantum efficiency

The best explanation: Only a certain number of photons arriving at the detector are converted to signal generating electrons. The quantum efficiency of the detector is defined as the ratio of the photons converted to signal generating electrons to the total number of photons arriving.

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