radioisotope thermoelectric generator


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radioisotope thermoelectric generator

(ther-moh-i-lek -trik) (RTG) See thermoelectric generator.

radioisotope thermoelectric generator

[¦rād·ē·ō′ī·sə‚tōp ¦thər·mō·i′lek·trik ′jen·ə‚rād·ər]
(nucleonics)
A device for converting nuclear energy to electrical energy in which the heat produced by radioactivity of a radioisotope is used to produce a voltage in a thermocouple circuit; chief use has been in space vehicles and in instruments left on the lunar surface. Abbreviated RTG.
References in periodicals archive ?
A General Purpose Heat Source Radioisotope Thermoelectric Generator (GPHS-RTG) provides electrical power for the Pluto mission.
Included in NASA plans are the nuclear rocket to Mars; a new generation of Radioisotope Thermoelectric Generators (RTGs) for interplanetary missions; nuclear-powered robotic Mars rovers to be launched in 2003 and 2009; and the nuclear powered mission called Pluto-Kuiper Belt scheduled for January, 2006.
Since 1961, NASA has launched 25 spacecraft carrying radioisotope thermoelectric generators, devices that convert the heat produced by decaying plutonium into electricity.
Radioisotope thermoelectric generators (RTGs) translate that heat to electricity.
There would also be the requirement of a reliable, steady supply of energy, so the use of radioisotope thermoelectric generators (RTGs) would be preferred.
In addition to DISR, the Titan IV/Centaur and the propulsion system, Lockheed Martin Space Systems Company designed and built the three radioisotope thermoelectric generators (RTGs) that power spacecraft systems.
In addition to the propulsion system, Lockheed Martin Space Systems Company designed and built the three radioisotope thermoelectric generators (RTGs) that power spacecraft systems and the Descent Imager/Spectral Radiometer (DISR) instrument on the Huygens probe.