The Gammex 156 provides the physical standard baseline for assuring the quality of the images produced by your mammographic system. 

The 156 simulates the x-ray attenuation of a 4.2 cm slab of compressed human breast composed of 50% adipose tissue and 50% glandular tissue. Target objects in the phantom are of known size, shape, and density.  These represent the different structures or malignancies found when imaging the breast. 

• The 156 simulates the x-ray attenuation of a 4.2 cm slab of compressed human breast composed of 50% adipose tissue and 50% glandular tissue.
• Acrylic construction with a replacable wax insert
• Test objects composes of nylon fibrils and simulated micro-calcification specs
• Provides the test step needed to measure density differences.