Snap Reactor Control-Drum Actuators

In the SNAP reactor development program at Atomics International,* a family of lightweight nuclear reactors is being optimized for space applications. Because the compact reactor is small and light in weight, components must operate without auxiliary cooling devices, thermal barriers, heat shields, and radiation shields. The components function in the environments of ultra-high temperature, nuclear radiation, and outer space for long periods of time. Control-drum actuators have been developed which will operate with high reliability in these environments.