Like many pieces of modern medical equipment, X-ray machines are as bulky and energy dependent as they are vital. Even "portable" X-ray machines remain too heavy to carry across rough terrain, and too energy hungry to run off batteries. That's why Radius Health's portable, low energy X-ray machine may revolutionize medicine in disaster zones, on the front lines, and at patients homes. By using pyroelectric crystals as an X-ray source, Radius Health has created a machine small enough to fit in a suitcase, light enough to deploy anywhere, and energy efficient enough to run on a laptop battery.