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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. Hoop (ret.), S. M. Grimes, M. Drosg
Nuclear Science and Engineering | Volume 188 | Number 1 | October 2017 | Pages 102-107
Technical Note | doi.org/10.1080/00295639.2017.1332892
Articles are hosted by Taylor and Francis Online.
A method is described to estimate deuteron-on-deuterium breakup neutron distributions at 0 deg using deuteron bombardment of 3He. Breakup neutron distributions are modeled with the product of a Fermi-Dirac distribution and a cumulative logistic distribution function. Four measured breakup neutron distributions from 6.15- to 12.0-MeV deuterons on 3He are compared with 13 measured distributions from 6.83- to 11.03-MeV deuterons on deuterium. Model parameters that describe d-3He neutron distributions are used to estimate neutron distributions from 6- to 12-MeV deuterons on deuterium.
