Method and apparatus for using film density measurements of a radiograph to monitor the reproducibility of X-ray exposure parameters of a mammography unit

摘要: Apparatus and methods for using film density measurements of a radiograph to monitor the reproducibility x-ray exposure parameters used by mammography unit make are disclosed. Radiographic images breast phantom novel beam quality formed simultaneously on single exposure. The comprises at least first section second from materials having different attenuation properties thicknesses. For any combination useful mammography, including kilovoltage peak, dose, half value layer, material which is selected so that optical produced greater than phantom. less difference in between sections phantom, adjusted effect processing, calibrated terms parameters. Thus, radiographic image can be making repeat radiographs