What must the procedure for film radiography include at a minimum?

The procedure for film radiography is comprehensive and includes several critical components that ensure effective imaging. A radiation source is fundamental as it generates the X-rays or gamma rays necessary for penetrating the material being inspected. Without a radiation source, the radiographic process cannot function, as there would be no means to produce the necessary radiation for imaging.

Intensifying screens are another key element. They are used to enhance the sensitivity of the film to radiation, allowing for the capture of high-quality images even with reduced exposure times. This improves the efficiency of the process and results in clearer images, which are crucial for accurate assessment and interpretation.

Exposure geometry pertains to the setup of the radiation source, the film, and the object being inspected. This includes the distance between the source and the film, as well as the angle of exposure. Proper exposure geometry is essential to achieve optimal radiographic quality and to avoid distortions or artifacts on the film.

Given that all these elements are integral to ensuring effective film radiography, the procedure must encompass all of them to meet the necessary standards and achieve reliable results.