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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.”
B. J. Micklich
Fusion Science and Technology | Volume 10 | Number 3 | November 1986 | Pages 1477-1482
Fusion Nucleonic | doi.org/10.13182/FST86-A24942
Articles are hosted by Taylor and Francis Online.
Neutron albedo methods can be used to simplify transport calculations in a wide variety of applications. Their utilization requires a collection of albedo data and a model which makes these results convenient for hand or machine computation. Results are presented here from neutron albedo calculations for incident intermediate-energy neutrons. These results can be explained using our knowledge of neutron interaction physics. Total albedos are directly related to the cross sections for elastic scatter and absorption. Angular distributions of reflected neutrons are approximately cosθr for all incident neutron conditions. The total albedo results are well modeled by an extension of a previously developed fast-neutron albedo model when ∑abs/∑t (the ratio of absorption to total cross section) is small.