| 摘要 |
Improved performance of rare earth oxyhalide phosphors in x-ray image intensifying screens may be realized by admixing a small but effective amount of certain fatty acids and fatty acid derivative with the phosphor prior to the preparation of the screen. Alternately, the phosphor powder can be washed with a liquid dispersion or solution of said additives as an equivalent means of providing improved moisture resistance as well as preserving the original emission brightness of the adhesively bonded material when used in x-ray screens.
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