What factors influence image quality?

In this article:

• Image Quality Is Defined by Contrast, Sharpness, and Graininess: These three core parameters determine the clarity and diagnostic value of a radiographic image, each influenced by specific technical and material factors
• Contrast Depends on Radiation Energy and Material Thickness: Higher contrast is achieved through optimal radiation hardness, consistent material thickness, and proper use of front and back screens to reduce scatter
• Sharpness Is Affected by Geometric Setup and Equipment: Key factors include focal spot size, source-to-object and object-to-film distances, and the quality of contact between film and intensifying screens
• Graininess Is Influenced by Film Type and Processing Conditions: The type of film, screen combination, and development procedure all impact the granularity of the image, which can obscure fine details if not properly controlled
• Radiographers Can Optimize Image Quality Through Setup and Technique: While some factors are inherent to the materials used, others—like exposure geometry and screen contact—can be adjusted to improve image clarity and flaw detectability