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Next-Generation RTGs for NASA

Show simple item record Woerner, David F. 2019-07-02T21:22:44Z 2019-07-02T21:22:44Z 2017-07-10
dc.identifier.citation 2017 AIAA Propulsion and Energy Forum, Atlanta, Georgia, July 10-12, 2017 en_US
dc.identifier.clearanceno CL#17-2735
dc.description.abstract NASA has used Radioisotope Thermoelectric Generators (RTGs) for nearly five decades to power planetary science missions where solar arrays or other power systems were impractical or ineffective. The Multi-Mission RTG (MMRTG) is the only type of RTG available for spaceflight today and it relies on technology used for the Pioneer and Viking missions of the 1970s. The MMRTG’s distant-relative, the General-Purpose Heat Source-RTG (GPHS-RTG), went out of production shortly after the turn of the twenty-first century. The thermoelectric technology it relied upon is several decades old and was first flown on the Voyager missions in 1977. While the GPHS-RTG could theoretically be brought out of mothballs, many advances have been made in thermoelectric materials, advances that warranted a clear-eyed review and study of the optimal properties of a “next-generation” RTG. This paper summarily describes the outcome of the study. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2017 en_US
dc.title Next-Generation RTGs for NASA en_US
dc.type Preprint en_US

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