Mammographic X-Ray devices basically vary in the dose of radiation applied, in comparison to the conventional X-Ray devices. The significantly lower X-Ray dose of maximum 50 kV complicate the receipt of precise results for constancy measurements done with usual detectors.

Thus, a mammographic detector had been developed: Measurement of X-Ray dose from 22 kV up to 55 kV can be determined with this device and are read out and displayed via the basic device Alpha Plus.