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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.
H. M. Eiland, S. Weinstein, K. W. Seemann
Nuclear Science and Engineering | Volume 54 | Number 3 | July 1974 | Pages 286-299
Technical Paper | doi.org/10.13182/NSE74-A23419
Articles are hosted by Taylor and Francis Online.
The total neutron cross sections of samarium highly enriched in the 147Sm and 150Sm isotopes have been measured from 0.01 eV to 1.2 keV. Thermal neutron cross sections and resonance parameters were extracted, and the S-wave strength functions and capture resonance integrals were calculated. Corrections for paramagnetic and small angle scattering were applied to the thermal-neutron cross sections in order to obtain thermal absorption cross sections. The following results were obtained:
