Line Shift Method for Phosphor Temperature Measurements

概要

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Two possible approaches to spectroscopic measurements of the internal temperature of Y_2O_2S: Eu are discussed. Methods based on relative Eu^<3+> fluorescence line intensities are found either to be insufficiently sensitive or to suffer from unavoidable experimental difficulties. The method which is adopted exploits the quadratic shift of the Eu^<3+> ^5D_0→^7F_0 transition energy with temperature. Controlled-temperature UV- and CR-excited fluorescence measurements establish the temperature calibration, which is then used to obtain the operating temperature of phosphor screens in a demountable CR excitation apparatus and in a tricolor CRT.
社団法人応用物理学会の論文
1976-12-05