Abstract

Publisher Summary Nuclear processes are logical choices for compact energy sources in vehicles that must travel long distances without refueling. The most successful application is to the propulsion of naval vessels, especially submarines and aircraft carriers. Chemical fuels serve to launch and return space vehicles such as the shuttle. For long missions such as interplanetary exploration, where it is necessary to supply electric power to control and communication equipment for years, nuclear power is needed. The radioisotope thermal generator (RTG) has been developed and used successfully for 18 missions. It uses a long-lived radionuclide to supply heat that is converted into electricity. The extent to which nuclear processes are used in space depends on the degree of commitment to a space program. This chapter discusses nuclear propulsion and future nuclear space applications.

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