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Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
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Latest News
NRC updating GEIS rule for new nuclear technology
The Nuclear Regulatory Agency is issuing a proposed generic environmental impact statement (GEIS) for use in reviewing applications for new nuclear reactors.
In an April 17 memo, NRC secretary Carrie Safford wrote that the commission approved NRC staff’s recommendation to publish in the Federal Register a proposed rule amending 10 CFR Part 51, “Environmental Protection Regulations for Domestic Licensing and Related Regulatory Functions.”
L. Rodrigo, M.J. Ivanco, J.W. Goodale, J.A. Senohrabek, L.K. Jones, L.M. Phillipi
Fusion Science and Technology | Volume 28 | Number 3 | October 1995 | Pages 940-945
Tritium Safety | Proceedings of the Fifth Topical Meeting on Tritium Technology in Fission, Fusion, and Isotopic Applications Belgirate, Italy May 28-June 3, 1995 | doi.org/10.13182/FST95-A30526
Articles are hosted by Taylor and Francis Online.
The quantitative significance of surface-contamination levels determined by different methods was assessed by carrying out measurements using the wipe-assay method and a commercial surface-contamination monitor (Whitlock Vacuum Scintillation Counter (VSC)). The results were compared to the total tritium desorbed from the sample. Simple correlations between these measurements were not found. Laser-assisted desorption methods are currently being investigated to measure total tritium on surfaces. Preliminary results obtained with a Nd:YAG laser (532 nm) are reported. Only water vapor and CO2 were found in the gas released under laser irradiation by mass spectroscopy. Approximately 65–95% of the surface tritium could be desorbed from all metal samples investigated.
