ABSTRACT
Analog radiographic systems using a combination of screen and film (SF) have been used for interpretation and diagnosis for many years, through the use of photographic plates and film since the discovery of X-rays by Roentgen (see Section II, Chapter 17 of this book). For SF systems, the appropriate dose level is determined to acquire optimal radiographic densities of film for each examination because each screen and film has a limited range of sensitivity to X-rays. Therefore, patient dose has been determined in response to the range of each SF system.
