论文部分内容阅读
批量使用过期10月的上海牌X光胶片,经X线照射后,在非指定的显影,定影液中冲洗加工,至水洗完毕,影像质量良好,但在55℃烤片箱中干燥,影像突变,点状、片状黑色密度急剧上升,以日工作量计算,变黑率最高达45.3％,废片率最高达29.5％。这种现象我们以前从未见过,原因在哪里,是过期片本身质量所至?或是显影,定影液质量欠佳?还是胶片与药液不匹配引起?只有经过研究,才能科学地得出结论,才有可能消除高温干燥中变黑的现象。
Bulk use of expired October Shanghai X-ray film, the X-ray irradiation, the non-designated development, fixing solution processing, washing to finish, the image quality is good, but in 55 ℃ oven dry, image mutation , Dot-like, black sheet density sharp rise in daily workload calculation, the highest black rate of 45.3%, scrap up to 29.5%. This phenomenon we have never seen before, the reason is that the quality of the expired film itself? Or is the development, the quality of the fixing fluid is poor? Or the film and the liquid caused by mismatch? Only after research to scientifically come to Conclusion, it is possible to eliminate the dark phenomenon of high temperature drying.