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Media Contacts
![Initially, Kevin Gaddis’s adapted HPIC will be used only for the fourth of six separations in actinium-225 processing, but he hopes it will later be used for other separations — and other isotopes. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-07/2021-P03893_1.jpg?h=c6980913&itok=DU6L5EUx)
An Oak Ridge National Laboratory researcher has invented a version of an isotope-separating device that can withstand extreme environments, including radiation and chemical solvents.
![From top to bottom respectively, alloys were made without nanoprecipitates or with coarse or fine nanoprecipitates to assess effects of their sizes and spacings on mechanical behavior. Credit: Michelle Lehman/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-07/beat1.jpg?h=97c79c76&itok=_hh-NOFW)
Scientists at ORNL and the University of Tennessee, Knoxville, have found a way to simultaneously increase the strength and ductility of an alloy by introducing tiny precipitates into its matrix and tuning their size and spacing.
![Balendra Sutharshan](/sites/default/files/styles/list_page_thumbnail/public/2021-06/2021-P01348.jpg?h=d33ebf6f&itok=qwQNPmu1)
In the mid-1980s, Balendra Sutharshan moved to Canada from the island nation of Sri Lanka. That move set Sutharshan on a path that had him heading continent-spanning collaborations and holding leadership posts at multiple Department of Energy
![Brenda Smith, shown here working with a gas viscometer in her research lab, is one of several people concurrently researching the thermophysical properties of feedstock gas. Their research will support computational researchers who are designing processes to separate isotopes. Credit: Carlos Jones/ORNL, US Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-05/2021-P01103_0.jpg?h=13f436e5&itok=lMLI1EqU)
For years Brenda Smith found fulfillment working with nuclear batteries, a topic she’s been researching as a chemist at Oak Ridge National Laboratory.
![ORNL’s Sergei Kalinin and Rama Vasudevan (foreground) use scanning probe microscopy to study bulk ferroelectricity and surface electrochemistry -- and generate a lot of data. Credit: Jason Richards/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-05/KalininVasudevan_2017-P03014_0.jpg?h=1116cd87&itok=KEEOB4hi)
At the Department of Energy’s Oak Ridge National Laboratory, scientists use artificial intelligence, or AI, to accelerate the discovery and development of materials for energy and information technologies.
![Targeted alpha therapy can deliver radiation to specific cells, with minimal effect on surrounding, healthy cells. Credit: Michelle Lehman and Jaimee Janiga/ORNL, U.S. Dept. of Energy](/sites/default/files/2021-03/gif_high_res.gif)
A rare isotope in high demand for treating cancer is now more available to pharmaceutical companies developing and testing new drugs.
![Technicians John Dyer and T. Dyer use a manipulator arm in a shielded cave in ORNL’s Radiochemical Engineering Development Center to separate concentrated Pm-147 from byproducts generated through the production of Pu-238.](/sites/default/files/styles/list_page_thumbnail/public/2021-03/Promethium%20feature_0.jpg?h=a1f525db&itok=6XSsJdot)
A new method developed at Oak Ridge National Laboratory proves one effort’s trash is another’s valuable isotope. One of the byproducts of the lab’s national plutonium-238 production program is promethium-147, a rare isotope used in nuclear batteries and to measure the thickness of materials.
![Oak Ridge National Laboratory entrance sign](/themes/custom/ornl/images/default-thumbnail.jpg)
Balendra Sutharshan, deputy associate laboratory director for operational systems at DOE’s Pacific Northwest National Laboratory, has joined ORNL as associate laboratory director for the Isotope Science and Engineering Directorate.
![The Perseverance rover](/sites/default/files/styles/list_page_thumbnail/public/2020-07/pia23492_0.jpg?h=d1cb525d&itok=A5U6cgBE)
On Feb. 18, the world will be watching as NASA’s Perseverance rover makes its final descent into Jezero Crater on the surface of Mars. Mars 2020 is the first NASA mission that uses plutonium-238 produced at the Department of Energy’s Oak Ridge National Laboratory.
![ORNL welder Devin Johnson uses a new orbital welder to seal a hollow target in a glovebox in the lab’s Radiochemical Engineering Development Center. The new welder makes a clean seam on the metal target, eliminating the need for hand-finishing afterward. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-01/2021-P00359.jpg?h=8f9cfe54&itok=_g8_FpZZ)
A better way of welding targets for Oak Ridge National Laboratory’s plutonium-238 production has sped up the process and improved consistency and efficiency. This advancement will ultimately benefit the lab’s goal to make enough Pu-238 – the isotope that powers NASA’s deep space missions – to yield 1.5 kilograms of plutonium oxide annually by 2026.