In accordance with the definition of the German Atomic EnergyAbility to do work or diffuse heat. The unit of energy is th... Act, any event causing damage when the event or damage is due to the radioactive properties or a connection of radioactive properties with toxic, explosive or other hazardous properties of nuclear fuels or radioactive products or waste, or to ionizing radiationAny radiation which directly or indirectly ionizes, e.g. alp... emitted from another radiationEnergy dispersion through matter or space. In atomic physics... source within the nuclear plant.