Mammography

The first two should be one, using radioactive imaging of molybdenum. The actual machine is two splints, and then the breast is placed between the splints, and then slowly tightened. In this way, there will be relatively less breast tissue on the shooting surface, and the tissue structure will be clearer. Of course, this kind of shooting will cause some discomfort, and some breasts are not suitable for this method due to their small size (cannot be clamped).

The third one is similar to ordinary X-rays, but it is a machine specially designed for breasts, and has a complete set of digital image processing programs to process X-rays. Its application is wider, but it is clearer. In terms of speed, it is still not as good as the molybdenum target.