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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.
F. C. Difilippo, R. B. Perez, G. de Saussure, D. K. Olsen, R. W. Ingle
Nuclear Science and Engineering | Volume 68 | Number 1 | October 1978 | Pages 43-54
Technical Paper | doi.org/10.13182/NSE78-A27269
Articles are hosted by Taylor and Francis Online.
The 238U to 235U fission cross-section ratio has been measured for incident neutrons from 0.1 to 25.0 MeV. A ratio shape measurement was normalized by the threshold cross-section method. A fission cross-section ratio from 0.436 ± 0.004 was found averaged over neutron energies from 2.35 to 2.95 MeV.
