AMULET is the world's first digital mammography system to be equipped with Fujifilm's revolutionary direct conversion flat panel detector (FPD) technology. The new format FPD has a proprietary panel structure with a double layer of amorphous selenium that has high X-ray absorption properties, and was developed by combining Fujifilm's "Device Development Technology" and "Vacuum Deposition Technology." The first layer efficiently converts X-rays into electrical signals, while the second layer employs the unique "Direct Optical Switching Technology," that captures higher resolution and lower noise image electrical signals rather than using electrical switches such as conventional TFTs. By achieving both "50µm fine pixel size (higher resolution) and low noise," the AMULET system can show microcalcifications and tumors in greater detail, both significant indicators for early diagnosis of breast cancer.

Source: http://www.fujifilm.com.my/Templates/MedicalSystems.aspx?id=2034