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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. E. Profio, R. J. Cerbone, D. L. Huffman
Nuclear Science and Engineering | Volume 44 | Number 3 | June 1971 | Pages 376-387
Technical Paper | doi.org/10.13182/NSE71-A20168
Articles are hosted by Taylor and Francis Online.
Time-of-flight measurements of the fast-neutron angular flux spectrum in CH2 and LiH spheres have been made to test shielding calculations. The spheres were excited with an isotropic photofission neutron source. Measurements were compared with discrete ordinates and Monte Carlo calculations. The major calculational difficulty was found to be the representation of the zero-degree flux in the discrete ordinates program.
