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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.
Yukio Ishiguro, Akira Hasegawa
Nuclear Science and Engineering | Volume 64 | Number 3 | November 1977 | Pages 786-791
Technical Note | doi.org/10.13182/NSE77-A27109
Articles are hosted by Taylor and Francis Online.
A simple and convenient method is developed to account for the neutron resonance mismatches due to the composition dissimilitude in the vicinity of gross region interfaces. It is shown that the effective resonance cross sections near a region interface can be obtained from the table-look-up of a cross-section set. The numerical results obtained with the present method are shown to be in an excellent agreement with the exact calculations using a computer code.
