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一般x光照片的质量是由反差、锐度及颗粒度三个因素来确定的。这三个因素也与x光照相、显影加工及照片观察环境有复杂的关系。本文探讨了x光照片的质量与反差、锐度及颗粒度的关系。为减低x光的曝光量及提高照片的质量,试制了新的含稀土类荧光体的发射绿光的荧光增感纸及组合使用的正色性x光胶片,实用效果较好。
The quality of the general x-ray is determined by the contrast, sharpness and particle size of the three factors. These three factors also have a complex relationship with x-ray photography, development processing and photo observation environments. This article explores the relationship between the quality of x-rays and contrast, sharpness, and particle size. In order to reduce the amount of x-ray exposure and improve the quality of the photos, a new fluorescent green sensitized paper containing green light and a positive-tone x-ray film used in combination have been tried and developed. The practical effect is good.