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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.
A. C. Merchant, P. E. Hodgson, H. R. Schelin
Nuclear Science and Engineering | Volume 111 | Number 2 | June 1992 | Pages 132-144
Technical Paper | doi.org/10.13182/NSE92-A23929
Articles are hosted by Taylor and Francis Online.
The experimental data on the interactions of I- to 20-MeV neutrons with 238U are summarized, together with the theoretical analyses. Particular attention is devoted to the elastic and inelastic scattering cross sections because of their practical importance. Functional forms for the surface and volume imaginary terms of the optical potential are chosen so that the dispersion relation, by means of which these terms generate additional contributions to the real part of the optical potential, can be evaluated analytically. The fission and capture cross sections are not included as they have been extensively reviewed elsewhere.
