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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.
G. P. Lamaze, R. A. Schrack, O. A. Wasson
Nuclear Science and Engineering | Volume 68 | Number 2 | November 1978 | Pages 183-188
Technical Paper | doi.org/10.13182/NSE78-A27288
Articles are hosted by Taylor and Francis Online.
The shape of the 6Li(n,α)T cross-section curve has been measured from 3- to 800-keV neutron energy. The neutrons were produced by the National Bureau of Standards 140-MeV Linac, and the measurements were made along the 200-m above-ground drift tube. The neutron flux was monitored by a 61-cm-long hydrogen gas proportional counter giving a direct ratio of the 6Li(n,α) cross section to the H(n,p) cross section. The 6Li(n,α) events were detected in a 0.5-mm-thick piece of 6Li glass (NE-912). The results were normalized to ENDF/B-V in the region from 10 to 100 keV. Overall uncertainties in the measurement are ∼2% in the range from 10 to 400 keV. Error analysis and comparisons with previous measurements are given.
