If you want to changes things radically you have to start from the inside. By applying this maxim, Dr. Peter Schardt and Dr. Jörg Freudenberger have opened up totally new prospects for the long-established technology of X-rays.
The core element of conventional X-ray devices is a filament of tungsten wire that glows very brightly at temperatures around 2500°C. Due to the high temperature the tungsten coil emits electrons which are accelerated by high voltage in the vacuum and generate X-ray radiation when they strike the counter-electrode.