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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.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
G. L. Varsamis, D. Steiner, M. J. Embrechts
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 1974-1978
Neutronic | Proceedings of the Ninth Topical Meeting on the Technology of Fusion Energy (Oak Brook, Illinois, October 7-11, 1990) | doi.org/10.13182/FST91-A29631
Articles are hosted by Taylor and Francis Online.
This work presents the analysis of neutron streaming through a tungsten-based shield, modelled as a set of interconnecting tungsten plates, cooled by an aqueous lithium salt solution. The plates are connected with right-angle bends, and then merge to a stainless-steel casing. Discrete neutron streaming paths exist through the right-angle connections and through the stainless steel joints. The analysis was performed in one and two dimensions, with discrete ordinates codes, and in three dimensions with a Monte Carlo code. The results indicate clear streaming paths, both behind ducts and also in cases were materials with very different neutron mean free paths are connected. The neutron flux was observed to peak behind the stainless-steel joints, when compared to adjoining tungsten shield sections. Streaming through the right-angle connections between tungsten plates was limited. The discrete ordinate codes (with low order quadrature sets), generally underestimated the neutron streaming. Higher order approximations required extensive computing time approaching that of the Monte Carlo analysis.