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NRC proposes changes to its rules on nuclear materials
In response to Executive Order 14300, “Ordering the Reform of the Nuclear Regulatory Commission,” the NRC is proposing sweeping changes to its rules governing the use of nuclear materials that are widely used in industry, medicine, and research. The changes would amend NRC regulations for the licensing of nuclear byproduct material, some source material, and some special nuclear material.
As published in the May 18 Federal Register, the NRC is seeking public comment on this proposed rule and draft interim guidance until July 2.
K. Ganguly, A. Sengupta
Nuclear Science and Engineering | Volume 74 | Number 1 | April 1980 | Pages 1-12
Technical Paper | doi.org/10.13182/NSE80-A18940
Articles are hosted by Taylor and Francis Online.
In this paper, transport theory methods have been used to obtain a modified form of the PN approximation. This modification involves use of the exact asymptotic roots instead of the PN roots, resulting in a corresponding change in the Marshak free surface boundary conditions. Various numerical examples of this transport theoretic PN approximation have been given.
