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OCR for page 71
Thermionics Quo Vadis?: An Assessment of the DTRA’s Advanced Thermionics Research and Development Program Appendix D Acronyms AEC —Atomic Energy Commission AFRL —Air Force Research Laboratory AMTEC —alkali metal thermal to electric converter BMDO —Ballistic Missile Defense Organization CC/MC —conductively coupled multicell (thermionic converter) CIM —cylindrical inverted multicell (thermionic converter) CVD —chemical vapor deposition DARPA —Defense Advanced Research Projects Agency DNA —Defense Nuclear Agency DoD —Department of Defense DOE —Department of Energy DTRA —Defense Threat Reduction Agency GEO —geosynchronous Earth orbit HPALM —high-power, advanced, low-mass (solar thermionic system) IAPG —Interagency Advanced Power Group IPPE —Institute of Physics and Power Engineering (Russia) ISS —International Space Station ISUS —Integrated Solar Upper Stage (Orbital Vehicle program) LEO —low Earth orbit JPL —Jet Propulsion Laboratory MHD —magnetohydrodynamic MPD—magnetoplasmadynamic MTC —microminiature thermionic converter NASA —National Aeronautics and Space Administration NMERI —New Mexico Engineering Research Institute NRC —National Research Council RTG —radioisotope thermoelectric generator SRA —Scientific Research Association SDIO —Strategic Defense Initiative Office SET —Solar Energy Technology (program) SNAP —Space Nuclear Auxiliary Power (program) SOTV —Solar Orbital Transfer Vehicle (program) SPAR —Space Power Advanced Reactor (program) STA —Space Technology Alliance

OCR for page 71
Thermionics Quo Vadis?: An Assessment of the DTRA’s Advanced Thermionics Research and Development Program STAR-C —space thermionic advanced reactor-compact START —string thermionic assembly research testbed (tests) TFE —thermionic fuel element TFEV —Thermionic Fuel Element Verification (program) TOPAZ —thermionic power from the active zone (a Russian acronym) TRIGA —training (test) reactor isotope General Atomics USAF —U.S. Air Force