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DOE announces NEPA exclusion for advanced reactors
The Department of Energy has announced that it is establishing a categorical exclusion for the application of National Environmental Policy Act (NEPA) procedures to the authorization, siting, construction, operation, reauthorization, and decommissioning of advanced nuclear reactors.
According to the DOE, this significant change, which goes into effect today, “is based on the experience of DOE and other federal agencies, current technologies, regulatory requirements, and accepted industry practice.”
J. Mandrekas, W.M. Stacey, H. He
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 1307-1312
Result of Large Experiment and Plasma Engineering | doi.org/10.13182/FST91-A29522
Articles are hosted by Taylor and Francis Online.
Reference operating scenarios for the physics phase of the International Thermonuclear Experimental Reactor (ITER) rely on low temperature, high density operation for good divertor performance. Operating points in this region are usually thermally unstable, and active burn control is required in order to maintain the selected operating point. We present transport simulations of ITER burn control scenarios with modulated neutral beam heating, using the 1-1/2D transport code WHIST. Our results indicate that control is possible, except at high densities (≥ 1.75 × 1020 m−3) where off-axis heating due to the poor beam penetration makes control problematic, especially for negative perturbations.