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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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.
M. Drosg, G. Haouat, D. M. Drake
Nuclear Science and Engineering | Volume 183 | Number 2 | June 2016 | Pages 298-303
Technical Note | doi.org/10.13182/NSE15-118
Articles are hosted by Taylor and Francis Online.
Monoenergetic neutron production by nuclear reactions among light elements and the production of white neutrons by such reactions are of particular interest for fusion applications. Data reduction of continuous neutron spectra is generally hampered by a lack of adequate background spectra. To find the best background spectrum for the measurement of 3H(t,n) double-differential cross sections, much effort was applied to determining a reliable background spectrum stemming from a tritium gas cell. Since the measurement of the 2H(t,n)4He reaction that was used for the efficiency determination used the same gas cell, the same background spectra could be used, and continuous neutron spectra stemming from the three-body (n+X+Y) reactions of 2H(t,n)X+Y could be extracted reliably. Thus, double-differential three-body neutron production cross sections were determined at 5.97, 7.47, 10.45, and 16.41 MeV, at angles between 0 and 90 deg with a scale uncertainty of <4%. Corresponding data with projectile and target particles exchanged are available in the same center-of-mass energy range with uncertainties of ~25%.