controlled thermonuclear reactor


controlled thermonuclear reactor

[kən¦trōld ¦thər·mō′nü·klē·ər rē′ak·tər] (nucleonics) The heart of a fusion spacecraft propulsion system, based on the thermonuclear reaction of deuterium with a helium-3 isotope to produce helium-4 and protons. Abbreviated CTR.