Hardman P K, Tilmon M F, Taylor T S
Oral Surg Oral Med Oral Pathol. 1987 Jun;63(6):733-7. doi: 10.1016/0030-4220(87)90378-1.
Contamination of processor solutions adversely affects the image quality of radiographic films. The purpose of this study was to determine the amount of developer or fixer contaminant that was necessary to produce a significant densitometric change in the base plus fog, speed, or contrast optical density readings for panoramic film. Significant differences in base plus fog (after 16 mL of fixer contaminant was added to developer), speed index (after 4 mL), and contrast index (after 8 mL) were observed in comparison with control values.
冲洗机溶液受到污染会对X线胶片的影像质量产生不利影响。本研究的目的是确定对于全景胶片，在片基加灰雾密度、感光度或对比度光学密度读数方面产生显著密度测量变化所需的显影剂或定影剂污染物的量。与对照值相比，观察到在显影剂中加入16mL定影剂污染物后片基加灰雾密度、加入4mL后感光度指数以及加入8mL后对比度指数存在显著差异。
