原発 - Nuclear Risk Education
Uranium-235 atoms split when struck by neutrons, releasing energy and more neutrons in a chain reaction.
Boron or cadmium rods absorb neutrons to regulate the chain reaction rate and maintain safe power levels.
Primary and secondary cooling loops transfer heat from the reactor core to steam generators.
Multiple barriers including steel vessels and reinforced concrete domes prevent radiation release.
Spent fuel assemblies are stored in cooling pools for years before transfer to dry cask storage facilities.
Loss of coolant accidents can cause fuel rod temperatures to exceed containment thresholds.