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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.
J. Halperin, C. E. Bemis, Jr., J. W. T. Dabbs, B. H. Ketelle, R. W. Stoughton, R. W. Hoff, R. J. Dougan
Nuclear Science and Engineering | Volume 75 | Number 1 | July 1980 | Pages 56-59
Technical Paper | doi.org/10.13182/NSE80-A20317
Articles are hosted by Taylor and Francis Online.
The prompt neutron multiplicity distribution for the spontaneous fission of 242Cm has been measured. The measurement has been carried out with a neutron multiplicity counter using hydrogen moderation and neutron detection with 3He proportional gas counters. The fission chamber is of a novel design enabling the measurement of fission fragments in the presence of high alpha intensities. We report a value of (242Cm) = 2.532 ± 0.013, which is in turn based on an assumed value for (252Cf) = 3.760.
