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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.
W. L. Whittemore
Nuclear Science and Engineering | Volume 33 | Number 1 | July 1968 | Pages 31-40
Technical Paper | doi.org/10.13182/NSE68-A20915
Articles are hosted by Taylor and Francis Online.
The General Atomic Neutron Velocity Selector has been used to study the details of neutron scattering in reactor-grade graphite. The scattering into various angular directions between 30 and 120° has been studied for incident neutrons with energies ranging up to 0.611 eV. The energy-transfer cross sections, corrected for plural scattering effects, have been evaluated to provide data in regions of large energy and momentum transfers not previously available and not readily accessible to experimenters using a reactor as a source of neutrons. The results are quite definitive and, when compared to the best available theory, indicate some regions of good agreement and some regions where a more complete theoretical treatment would be useful.