What role does exposure time play in radiographic image quality?

Longer exposure time typically enhances image quality because it allows more radiation to interact with the detector or film. This increased interaction results in a clearer and more detailed image, as the additional exposure helps to capture finer details and reduce the effects of noise or graininess that can occur with shorter exposure times. Adequate exposure time improves the overall contrast and density of the image, making it easier to identify features and defects within the material being inspected.

While there are other factors that can influence image quality, such as the type of radiographic equipment used, the sensitivity of the film or detector, and the distance from the radiation source, the relationship between exposure time and image quality is direct. A consideration of exposure time is essential in radiography, especially in ensuring that images are both clear and diagnostic.