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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.
B. R. Wienke
Nuclear Science and Engineering | Volume 53 | Number 3 | March 1974 | Pages 329-332
Technical Note | doi.org/10.13182/NSE74-A23360
Articles are hosted by Taylor and Francis Online.
The Boltzmann equation in an accelerated medium is described and the Legendre moments of the equation, formulated in velocities relative to that medium, are obtained for one-dimensional plane and spherical geometries. The accelerated medium effectively introduces additional velocity-dependent terms into the usual moment equations. The Pn scheme is suggested for the coupled channel equations and a low-order diffusion approximation accounting for the acceleration of the medium proposed.
