The Digital cassettes are specially designed for NDT applications. As the higher radiation energy used in industrial X-ray makes the use of standard medical cassettes impossible, GE Inspection Technologies has developed cassettes specifically for NDT applications. These cassettes have user-selectable built-in lead sheet front filters of 125 µm and 250 µm, and a standard 150 µm lead sheet at the backside to avoid backscatter. A magnetic sheet ensures equal pressure over the entire Imaging Plate, eliminating the risk of unevenness that influences the image quality during exposure. The lead sheets are covered with a protective layer to avoid contamination of the cassette during handling.