In film-based radiography, when using a cassette, it is necessary to use intensifying screens.

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Intensifying screens are necessary in film-based radiography to reduce the amount of radiation exposure needed to produce a diagnostic image. The screens work by converting the energy of the X-rays into light, which in turn expose the film. This reduces the amount of radiation needed and also improves the contrast and sharpness of the image. Without intensifying screens, a higher dose of radiation would be needed to produce an image, which could be harmful to the patient and staff.

In Film-Based Radiography, When Using a Cassette, It Is Necessary