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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Fusion Science and Technology
Latest News
The journey of the U.S. fuel cycle
Craig Piercycpiercy@ans.org
While most big journeys begin with a clear objective, they rarely start with an exact knowledge of the route. When commissioning the Lewis and Clark expedition in 1803, President Thomas Jefferson didn’t provide specific “turn right at the big mountain” directions to the Corps of Discovery. He gave goal-oriented instructions: explore the Missouri River, find its source, search for a transcontinental water route to the Pacific, and build scientific and cultural knowledge along the way.
Jefferson left it up to Lewis and Clark to turn his broad, geopolitically motivated guidance into gritty reality.
Similarly, U.S. nuclear policy has begun a journey toward closing the U.S. nuclear fuel cycle. There is a clear signal of support for recycling from the Trump administration, along with growing bipartisan excitement in Congress. Yet the precise path remains unclear.
Nikita V. Shabrov, Vladimir I. Khvesjuk
Fusion Science and Technology | Volume 26 | Number 2 | September 1994 | Pages 117-124
Technical Paper | Plasma Engineering | doi.org/10.13182/FST94-A30335
Articles are hosted by Taylor and Francis Online.
A method to ensure increased radial losses for a selected population of particles from an axially symmetric magnetic trap is described. The method is based on the resonance action of a rotating perturbation magnetic field on the particles. The possible mechanisms and properties of the transverse transfer of particles in this case are discussed. The numerical investigations made with a one-particle approximation allow estimation of the efficiency of the proposed method of pumping. The ion pumping from the thermal barrier of a tandem mirror fusion reactor is considered as an example.
