映像変換パネル用の新光導電性材料

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  • New Photoconductive Material Suitable for an Image Converting Panel
  • エイゾウ ヘンカン パネルヨウ ノ シンコウ ドウデンセイ ザイリョウ

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説明

A new photoconductive material suitable for an EL-PC type X-ray image converting panel was developed. The material was obtained by activating a mixture of CdSe, ZnS and ZnO with Cu as an activator and chlorine and bromine as co-activators. In this method, an addition of ZnS, which makes a solid-solution with CdSe, was effective to increase the threshold voltage of the material, that of ZnO, which suppresses excessive sintering at the firing step, was effective to decrease the particle size, and the optimum amounts of ZnS and ZnO were effective to improve the photosensitivity of the material. The X-ray image converting panel for which the material was applied had improved characteristics in brightness, contrast, threshold sensitivity and resolution.

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