Considerations in the fabrication, assembly, and testing of radioisotopic thermo‐photovoltaic (RTPV) generators for future space missions Available to Purchase

To increase energy output with a smaller size and mass than the radioisotopic thermoelectric generators (RTGs) that were previously used on deep space missions, a radioisotopic thermophotovoltaic (RTPV) system is being developed for the ‘‘Pluto Express’’ flyby mission. To minimize cost and development time, some facilities and components currently used for RTG production can be used to produce RTPVs. Production options also include out‐sourcing and use of off‐the‐shelf hardware. Necessary modifications to tooling, production equipment, testing and shipping methods can be achieved in a timely manner so that the RTPV will be ready well before the planned launch of ‘‘Pluto Express.’’