17-822

non-selective quantum detector

detector of optical radiation whose quantum efficiency is independent of wavelength over the spectral range considered

NOTE 1 It should be stated whether the external or internal quantum efficiency is being considered. If not explicitly stated, it shall be taken as the external quantum efficiency.

NOTE 2 A photoluminescent material having a photoluminescence yield independent of the wavelength of the exciting radiation over a wide spectral range is sometimes called a "quantum counter".

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