What characteristic does duplicating film have?

Duplicating film is designed specifically for creating copies of radiographs, and it has distinct characteristics that set it apart from standard dental film. One of the primary characteristics of duplicating film is that it is not exposed to x-rays; instead, it is used in conjunction with a light source to create duplicates of existing images. This means that it does not require exposure to ionizing radiation like traditional radiographic film does.

Furthermore, duplicating film typically has an emulsion only on one side. This specific characteristic allows for optimal copying of images without the confusion of having emulsion on both sides, which could complicate the duplication process and affect the quality of the copied image.

Both of these features highlight the unique nature of duplicating film as a specialized tool in dental radiography, making it suitable for the task of reproducing images effectively. The emphasis on light exposure rather than x-ray exposure distinguishes it from other types of films commonly used in dental radiography.