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Plutonium-238 produced at ORNL helps restores ability to power NASA space missions

Posted at 1:35 pm December 23, 2015
By Oak Ridge National Laboratory Leave a Comment

ORNL-Plutonium-238

By producing 50 grams of plutonium-238, Oak Ridge National Laboratory researchers have demonstrated the nation’s ability to provide a valuable energy source for deep space missions. (Photo by ORNL)

 

With the production of 50 grams of plutonium-238, researchers at the U.S. Department of Energy’s Oak Ridge National Laboratory have restored a U.S. capability dormant for nearly 30 years and set the course to provide power for NASA and other missions.

Plutonium-238 produces heat as it decays, and it can be used in systems that power spacecraft instruments. The new sample, which is in the same oxide powder form used to manufacture heat sources for power systems, represents the first end-to-end demonstration of a plutonium-238 production capability in the United States since the Savannah River Plant in South Carolina ceased production of the material in the late 1980s.

Researchers will analyze the sample for chemical purity and plutonium-238 content, then verify production efficiency models and determine whether adjustments need to be made before scaling up the process.

“Once we automate and scale up the process, the nation will have a long-range capability to produce radioisotope power systems such as those used by NASA for deep space exploration,” said Bob Wham, who leads the project for the lab’s Nuclear Security and Isotope Technology Division. [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, Top Stories, U.S. Department of Energy Tagged With: Bob Wham, deep space missions, DOE Office of Nuclear Energy, DOE Office of Science, High Flux Isotope Reactor, Idaho National Laboratory, Los Alamos National Laboratory, NASA, NASA mission, neptunium oxide, neptunium-237, neptunium-238, Nuclear Security and Isotope Technology Division, Oak Ridge National Laboratory, ORNL, plutonium-238, spacecraft, U.S. Department of Energy

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