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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.
W. P. Poenitz
Nuclear Science and Engineering | Volume 47 | Number 2 | February 1972 | Pages 228-230
Technical Note | doi.org/10.13182/NSE72-A22401
Articles are hosted by Taylor and Francis Online.
The ratio of the fission cross sections of 239Pu to that of 235U has been measured at 30 keV and from 0.5 to 5.4 MeV. A value of 0.796 ± 0.020 has been obtained at 30 keV. None of the structure reported recently by Savin et al. could be found in the MeV range in the present measurements.
