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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.
Meir Segev, A. Galperin
Nuclear Science and Engineering | Volume 125 | Number 1 | January 1997 | Pages 84-92
Technical Paper | doi.org/10.13182/NSE97-A24256
Articles are hosted by Taylor and Francis Online.
Interest in generating energy with thorium fuel has increased lately as a result of the activation of subcritical ThO2 lattices by accelerated protons. A tight, ThO2 water-cooled lattice has been proposed to generate 200 MW(thermal) with 1.5-GeV protons in a current of ∼ 7mA. A tight-latticed core, consisting of a ThO2/233UO2 seed embedded in a large ThO2 blanket, has been proposed to generate 2400 MW(thermal) with 1.0-GeV protons in a current of 20 mA. A consistent detailed analysis of these two energy amplifiers, carried out with the HERMES, MCNP, KORIGEN, WIMS, and BOXER codes, results in performances inferior to those claimed. The net power generated will be one-fourth of that claimed for the former and 1/2.5 of that claimed for the latter.
