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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.
K. Shure
Nuclear Science and Engineering | Volume 78 | Number 2 | June 1981 | Pages 185-190
Technical Note | doi.org/10.13182/NSE81-A20106
Articles are hosted by Taylor and Francis Online.
Decay rate data of mixed fission products are presented from thermal neutron fission of 233U, 235U, and 239Pu and from fast fission of 238U and 232Th in the absence of neutron absorption by the fission products. The effect of neutron absorption by the fission products on decay rate is shown to be relatively small for conditions that exceed current light water reactor conditions. Decay heat data from fission products of 233U and 232Th in the absence of neutron absorption are provided which supplement similar data for 235U, 238U, and 239Pu given in the new American National Standards Institute/American Nuclear Society 5.1 Standard.
