DIN 6834 Radiation-Protection-Doors Radiation-Protection-Door sets, types 3 N and 16 N, are available with lead (Pb) inlay in the configuration as solid door, door with vision panel and door with top panel.
They are mostly used in order to block x-rays, gamma rays and thermionic rays, preferably in medically used rooms, e.g. rooms for diagnostics and therapies. The Radiation-Protection is achieved by including a lead inlay in the door leaf structure.
The thickness of the lead inlay (in mm) is defined by the so called lead equivalent value according to DIN 6845. The lead equivalent value of a door is determined by the sum of the thickness of the two lead inlays in the door leaf.