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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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DOE issues new NEPA rule and procedures—and accelerates DOME reactor testing
Meeting a deadline set in President Trump’s May 23 executive order “Reforming Nuclear Reactor Testing at the Department of Energy,” the DOE on June 30 updated information on its National Environmental Policy Act (NEPA) rulemaking and implementation procedures and published on its website an interim final rule that rescinds existing regulations alongside new implementing procedures.
E. Greenspan, G. H. Miley
Fusion Science and Technology | Volume 2 | Number 1 | January 1982 | Pages 43-54
Technical Paper | Fusion Fuel Cycles | doi.org/10.13182/FST82-A20733
Articles are hosted by Taylor and Francis Online.
The maximum fraction of 3He recoverable from deuterium-based plasmas (to fuel D-3He fusion reactors) is investigated, and optimal plasma conditions are identified. The upper bound to the fraction of 3He recoverable from ignited plasmas is ∼80%, corresponding to one 3He atom per 50 MeV of fusion energy, but recovery efficiency is very sensitive to the plasma energy balance. Effects of enhanced radiation losses, tritium assistance, ion/electron temperature split, plasma temperature and density profiles, and external plasma heating are examined. It appears possible to recover ∼70% of the 3He produced in realistic driven semi-catalyzed deuterium (SCD) plasmas, at 70 MeV per atom. This suggests interesting possibilities for the symbiosis of SCD synfuel factories with satellite D-3He reactors for the generation of electricity.
