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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Nuclear Science and Engineering
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Nuclear Technology
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Latest News
Securing the advanced reactor fleet
Physical protection accounts for a significant portion of a nuclear power plant’s operational costs. As the U.S. moves toward smaller and safer advanced reactors, similar protection strategies could prove cost prohibitive. For tomorrow’s small modular reactors and microreactors, security costs must remain appropriate to the size of the reactor for economical operation.
Manasi Goswami, Sanjay Gupta, Feroz Ahmed
Nuclear Science and Engineering | Volume 133 | Number 3 | November 1999 | Pages 342-349
Technical Note | doi.org/10.13182/NSE99-A2094
Articles are hosted by Taylor and Francis Online.
In view of the blanket design of a futuristic deuterium-tritium fusion reactor, a time-dependent study of 14-MeV neutrons has been carried out in bare lithium and Li2O blanket assemblies with different concentrations of 6Li nuclei. For assemblies of different sizes, time-dependent total neutron fluxes, a tritium production rate (TPR), and a tritium breeding ratio (TBR) up to 40% concentration of 6Li (natural concentration being 7.42 at.%) have been reported. A multigroup diffusion equation and eigenfunction expansion method has been used. This study shows that for any concentration of 6Li, the values of TPR as well as TBR are higher for a Li2O assembly than those obtained for all corresponding (of same size) assemblies of lithium. However, for a given assembly of lithium or Li2O, the TBR values do not show any observable change with 6Li concentration beyond ~40%. Further, for any concentration, the values of TPR and TBR decrease substantially in both types of systems as the side of the cubic assembly is reduced from 1 to 0.5 m.