In the context of energy use, it is a measure of the amount of useful energy produced as a percentage of the primary resources consumed. Each ray has a different characteristic wavelength. See also background radiation .
Electrons determine the chemical behaviour of elements.
Such atoms all have the same chemical properties. The emergency core cooling systems are a variety of safety measures designed to operate automatically to keep the core of a reactor drenched with water if the primary circuit should spring a leak. See LOCA . Emergency core cooling systems are an example of engineered protection. Current technologies are the gas centrifuge process and the gas diffusion process, both of which use uranium hexafluoride as their feedstock.