16 April 2016 Investigation of miniaturized radioisotope thermionic power generation for general use
Author Affiliations +
Radioisotope thermoelectric generators (RTGs) running off the radioisotope Pu238 are the current standard in deep space probe power supplies. While reliable, these generators are very inefficient, operating at only ~7% efficiency. As an alternative, more efficient radioisotope thermionic emission generators (RTIGs) are being explored. Like RTGs, current RTIGs concepts use exotic materials for the emitter, limiting applicability to space and other niche applications. The high demand for long-lasting mobile power sources would be satisfied if RTIGs could be produced inexpensively. This work focuses on exposing several common materials, such as Al, stainless steel, W, Si, and Cu, to elevated temperatures under vacuum to determine the efficiency of each material as inexpensive replacements for thermoelectric materials.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Adam J. Duzik, Adam J. Duzik, Sang H. Choi, Sang H. Choi, "Investigation of miniaturized radioisotope thermionic power generation for general use", Proc. SPIE 9802, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2016, 98020C (16 April 2016); doi: 10.1117/12.2222039; https://doi.org/10.1117/12.2222039


Narrow (0.1 um to 0.5 um) copper lines for ultra...
Proceedings of SPIE (March 31 1991)
Copper metallization for on-chip interconnects
Proceedings of SPIE (September 12 1996)
The IONEX MeV Implanter System
Proceedings of SPIE (April 08 1985)

Back to Top