RECIPROCITY-LAW FAILURE IN GREEN-SENSITIVE X-RAY FILM SYSTEM (Lanex Medium+OH-1) : DEVELOPMENT TEMPERATURE

Reciprocity-Law failure leads to increased patient exposure in clinical radiography and affects the image quality of a radiograph. A green sensitive X-ray film was developed by an automatic processor at three different temperatures of 33℃, 35℃, and 37℃ respectively, and the reciprocity-law failure of the film was measured under these conditions. As a result, it has been found that reciprocity-law failure is more likely to occur at higher development temperature and lower density than at lower development temperature and higher density.