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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.
J. W. Meadows
Nuclear Science and Engineering | Volume 85 | Number 3 | November 1983 | Pages 271-279
Technical Paper | doi.org/10.13182/NSE83-A17319
Articles are hosted by Taylor and Francis Online.
The 237Np-to-235U fission cross-section ratio was measured at 66 discrete energies between 0.1 and 9.4 MeV using the 7Li(p, n)7Be and D(d, n)3He reactions as neutron sources. The sample masses were determined by low geometry alpha-particle counting. The specific activities of the uranium samples are based on (a) isotopic analyses and published half-lives, (b) colorimetric analyses, and (c) isotopic dilution analyses. The neptunium specific activity depends on the half-life measurement of Brauer et al.
