Light weight radioisotope heater unit (LWRHU) production for the Cassini mission

Details Light weight radioisotope heater unit (LWRHU) production for the Cassini mission Light weight radioisotope heater unit (LWRHU) production for the Cassini mission

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..387.1375r&link_type=abstract

Space technology and applications international forum (STAIF - 97). AIP Conference Proceedings, Volume 387, pp. 1375-1380 (1997

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Spaceborne And Space Research Instruments, Apparatus, And Components, Thermoelectric, Electrogasdynamic And Other Direct Energy Conversion

Scientific paper

The LWRHU is a 238PuO2 fueled heat source designed to provide one thermal watt in each of various locations on a spacecraft. The heat sources are required to maintain the temperature of specific components within normal operating ranges. The heat source consists of a hot-pressed 238PuO2 fuel pellet, a Pt-30Rh vented capsule, a pyrolytic graphite insulator, and a woven graphite aeroshell assembly. Los Alamos National Laboratory has fabricated 180 heat sources, 157 of which will be used on the Cassini mission.

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