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| photocathode spectral sensitivity characteristic | |||
| spectral sensitivity curve (eye, photomultiplier tube); spectral response curve (a curve of radiant sensitivity as a function of wavelength); visibility curve (the relative sensitivity of the eye to light of the visible spectrum); luminosity curve (of the human eye; sensitivity of the human eye to radiant energy as a function of wavelength); eye-response function | |||
| spectral sensitivity characteristic (of а photocathode) | |||