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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.
N. G. Sjöstrand, E. B. Dahl
Nuclear Science and Engineering | Volume 57 | Number 1 | May 1975 | Pages 84-86
Technical Note | doi.org/10.13182/NSE75-A40347
Articles are hosted by Taylor and Francis Online.
With recently published results of Kaper et al. as a basis, accurate extrapolated endpoints have been calculated for homogeneous pulsed slabs and spheres. The neutrons were assumed to be monoenergetic and to scatter isotropically. In contrast to P3 calculations, the results indicate a zero slope at small bucklings of the curve describing the extrapolated endpoint as a function of buckling.