In radiographic testing, what does a sensitometric curve illustrate?

A sensitometric curve is a graphical representation that illustrates the relationship between the exposure of radiographic film to radiation and the resultant density of the image produced on that film. This relationship is critical for understanding how sensitive the film is to various levels of exposure.

The curve typically shows how film density increases as exposure increases, allowing radiographers to determine the optimal exposure needed to achieve the required image quality. This information is essential for proper film processing and interpreting radiographs. By analyzing the sensitometric curve, technicians can also identify the latitude of the film, which helps in understanding how much exposure variation the film can tolerate while still producing usable images.

Understanding film sensitivity through the sensitometric curve is vital for ensuring high-quality radiographic images and maintaining the reliability of radiographic testing procedures.