Nuclear engineers apply principles of nuclear science to meet energy needs and benefit humankind. Graduates work in a broad spectrum of industries, including electrical utilities, the Navy, fuel vendors, nuclear regulators, government, medical, and aerospace industry. Nuclear engineers design, service, and maintain nuclear power plants. They work in nuclear security and in developing detectors for special nuclear materials. They develop radiation detection and measurement methods and devise facilities to store, monitor, and dispose of radioactive waste. Nuclear engineers also design medical imaging equipment and power systems for deep-space probes.