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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.
R. H. Fulmer, D. P. Stricos, T. F. Ruane
Nuclear Science and Engineering | Volume 46 | Number 2 | November 1971 | Pages 314-317
Technical Note | doi.org/10.13182/NSE71-A22365
Articles are hosted by Taylor and Francis Online.
Neutron absorption cross sections for 94Zr and 96Zr were measured by an activation technique. Absolute gamma-ray counting of the radioactive daughters, with a Ge(Li) detector-multichannel analyzer system, yielded disintegration rates which were calibrated in terms of cross section with gold samples. Results, in barns, for 2200 m/sec cross sections and resonance integrals are 94Zr, 0.052 ± 0.003, 0.30 ± 0.03; 96Zr, 0.020 ± 0.003, 5.0 ± 0.4, respectively. The low value of the 96Zr thermal cross section requires that the resonance at 301 eV be p wave.
