What is true about duplicating film?

Duplicating film is specifically designed for the purpose of creating copies of radiographs rather than for primary diagnostic imaging. It contains an emulsion coating on both sides, which allows it to capture the image from the original film when exposed to light, rather than x-rays. This dual-sided emulsion is an essential characteristic, as it maximizes the sensitivity and quality of the duplicated image by utilizing light from the original film rather than ionizing radiation.

The importance of having emulsion on both sides lies in its ability to enhance the clarity and detail of the duplicates produced, enabling practitioners to evaluate radiographs for diagnostic purposes or to share copies with patients or other healthcare providers. This fundamental feature of duplicating film distinguishes it from standard radiographic film used in imaging, which typically has emulsion on one side.