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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.
M. Goldsmith
Nuclear Science and Engineering | Volume 52 | Number 4 | December 1973 | Pages 461-465
Technical Paper | doi.org/10.13182/NSE73-A23313
Articles are hosted by Taylor and Francis Online.
A deformed optical potential, obtained by matching partial cross sections and the s-wave strength function, is used to calculate p-wave strength functions for 238U and 232Th. We find for 232Th: S1,1/2 = 1.9 × 10-4; S1,3/2= 1.8 × 10-4. For 238U, we find: S1,1/2 = 2.0 × 10-4; S1,3/2 = 1.9 × 10-4. These results are consistent with thermal potential scattering cross sections of ∼10.5 b for both nuclides.
