Radioisotope Power Systems An Imperative for Maintaining U.S. Leadership in Space Exploration (2009) / Chapter Skim
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These spacecraft have sent back to Earth images RPSs. In the past, the United States had an adequate supply and data that have greatly expanded human knowledge, of 238Pu, which was produced in facilities that existed to though many important questions remain unanswered.
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the United States. Both of these approaches would use exist- It has long been recognized that the United States would ing reactors at DOE facilities at Idaho National Laboratory need to restart domestic production of 238Pu in order to and Oak Ridge National Laboratory with minimal modifica- continue producing RPSs and to maintain U.S.
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-20 The Problem -40 2008 2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 Calendar Year Pu demand, status quo: OPF 1 uses MMRTGs Pu demand, best case: OPF 1 uses ASRGs Pu balance, status quo: OPF 1 uses MMRTGs, with no new Pu production Pu balance, best case: OPF 1 uses ASRGs, FY 2010 funding for Pu production FIGURE S.1 Potential 238Pu demand and net balance, 2008 through 2028. demand for 238Pu.
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Radioisotope Generator (ASRG) with all deliberate speed, • A plan for assessing and mitigating technical and sched- with the goal of demonstrating that ASRGs are a viable ule risk.,., option for the Outer Planets Flagship 1 mission.
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