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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.
F.Malvagi, G. C. Pomraning
Nuclear Science and Engineering | Volume 111 | Number 3 | July 1992 | Pages 215-228
Technical Paper | doi.org/10.13182/NSE92-A23936
Articles are hosted by Taylor and Francis Online.
Several models describing neutral particle transport through a binary stochastic background mixture are numerically compared. The test problem is one-group, time-independent transport with isotropic scattering in a source-free rod. The mixing statistics of the rod are taken as homogeneous and Markovian. Ensemble-averaged reflection and transmission probabilities as predicted by seven approximate models are compared with exact benchmark results that are available in the literature. Scalar flux plots that compare these seven models at interior rod locations are also given.