Changing from medium-speed calcium tungstate screens to high rare-earth screens will reduce the exposure settings by what percentage?

Utilizing high rare-earth screens instead of medium-speed calcium tungstate screens can significantly enhance the sensitivity of the radiographic system. High rare-earth screens are more efficient at converting X-ray photons into visible light, which then exposes the film or digital detector. This increased efficiency allows for a reduced exposure time or shorter mAs settings while still producing high-quality images.

The common industry standard indicates that switching from medium-speed screens to high rare-earth screens can result in a reduction of exposure by approximately 75%. This means that technicians can decrease the radiation dose to patients while still obtaining the diagnostic quality images needed. Consequently, radiography settings can be adjusted to reflect this substantial reduction, enhancing patient safety and improving workflow efficiency in radiographic practices.