Green-sensitive(orthochromatic) medical X-ray film combined with rare-earth elements intensifying screens can perform many superiorities,e.

• 感绿（正色性）医用x线胶片与稀土元素增感屏配合可显示出极大的优越性：显著地减少x线剂量，提高影像质量，降低生产成本等等。