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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. Corvi, C. Bastian, K. Wisshak
Nuclear Science and Engineering | Volume 93 | Number 4 | August 1986 | Pages 348-356
Technical Paper | doi.org/10.13182/NSE86-A18470
Articles are hosted by Taylor and Francis Online.
The capture area in the 1.15-keV neutron resonance of 56Fe was measured with Moxon-Rae detectors with converters of bismuth, bismuth-graphite, and graphite. The data were normalized to gold capture at 4.91 eV using the saturated resonance method. Two separate measurements were performed: the first with the detector axis at 120 deg with respect to the neutron beam direction and the second with the axis at 90 deg. The average of the results over the three detectors is gsГnГγ/ Г = (64.9 ± 2.4) meV for the 120-deg run and gГnГγ/Г = (63.5 ± 2.1) meV for the 90-deg run. These values are 14 to 16% larger than the corresponding one from transmission data. No reason is found for such a discrepancy.
