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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. J. Mill
Nuclear Science and Engineering | Volume 85 | Number 2 | October 1983 | Pages 127-132
Technical Paper | doi.org/10.13182/NSE83-A27420
Articles are hosted by Taylor and Francis Online.
Several filtered-beam facilities exist that provide monoenergetic neutrons at 186 eV; 2, 25, 55, and 144 keV; and at 2.2 MeV. This range of energies can be extended by using natural uranium as a filter in conjunction with suitable secondary filters and scattering foils. The range of energies obtainable with uranium lies between 100 eV and 2.5 keV. Neutron fluence rate and beam purity estimates are provided at the most useful energies obtainable with uranium. Dose equivalent rates and kerma rates are also evaluated, and it is concluded that such a range of filtered beams would have many useful applications in radiation protection.
