VIDICON TARGET Russian patent published in 2000 - IPC

FIELD: television engineering; television cameras at nuclear power plants. SUBSTANCE: target has substrate, conducting layer, CdSe base photosensitive layer, and resistive layer. Thickness d of photosensitive layer is found from equation , where α(λ) is coefficient of light absorption by photosensitive layer material at wavelength λ = λ_max; λ_max is red absorption boundary. Resistive layer has two sub-layers. First AsSbS₃ base sub-layer, (0.04-0.1) mcm thick, abuts against CdSe base photosensitive layer and second As₂Se₃ base sub-layer, against first sub-layer. EFFECT: improved service life, reliability, and mechanical endurance of target.