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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. Smith, P. Guenther, D. Smith, J. Whalen
Nuclear Science and Engineering | Volume 72 | Number 3 | December 1979 | Pages 293-303
Technical Paper | doi.org/10.13182/NSE79-A20386
Articles are hosted by Taylor and Francis Online.
Neutron total cross sections of 60Ni were measured with broad resolutions from ∼0.5 to 5.0 MeV at intervals of ≲50 keV. Differential elastic neutron scattering cross sections were measured from 1.5 to 4.0 MeV at intervals of ≲50 keV over the scattered neutron angular range from ∼20 to 160 deg. Differential cross sections for the inelastic neutron excitation of states at 1.342 ± 0.013, 2.168 ± 0.010, 2.304 ± 0.026, 2.509 ± 0.022, 2.636 ± 0.019, and 3.164 ± 0.041 MeV were also measured. The experimental results are interpreted in terms of optical-statistical and coupled-channel models, including consideration of compound nucleus fluctuations and direct-vibrational processes.