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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. Madey, P. J. Photinos, K. B. Lee
Nuclear Science and Engineering | Volume 67 | Number 2 | August 1978 | Pages 269-270
Technical Note | doi.org/10.13182/NSE78-A15445
Articles are hosted by Taylor and Francis Online.
The volume adsorption capacity of activated carbon (Columbia type 4 LXC 12/28) at 20°C for 0.98 mol% argon is 0.109 ± 0.004 cm3 (STP) per gram of carbon. This determination is based on a measurement of the time-dependent transmission of argon in helium through an adsorber bed and on the analysis of that measurement in terms of a dispersion model. The transmission is the ratio of the concentration at the outlet of the adsorber bed to that at the inlet. The analysis yields values for the dispersivity as well as the effective adsorptivity. Both parameters are needed to calculate the steady-state transmission of radioactive argon.
