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Division Spotlight
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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Latest News
High-temperature plumbing and advanced reactors
The use of nuclear fission power and its role in impacting climate change is hotly debated. Fission advocates argue that short-term solutions would involve the rapid deployment of Gen III+ nuclear reactors, like Vogtle-3 and -4, while long-term climate change impact would rely on the creation and implementation of Gen IV reactors, “inherently safe” reactors that use passive laws of physics and chemistry rather than active controls such as valves and pumps to operate safely. While Gen IV reactors vary in many ways, one thing unites nearly all of them: the use of exotic, high-temperature coolants. These fluids, like molten salts and liquid metals, can enable reactor engineers to design much safer nuclear reactors—ultimately because the boiling point of each fluid is extremely high. Fluids that remain liquid over large temperature ranges can provide good heat transfer through many demanding conditions, all with minimal pressurization. Although the most apparent use for these fluids is advanced fission power, they have the potential to be applied to other power generation sources such as fusion, thermal storage, solar, or high-temperature process heat.1–3
Li-Min Jin, Shuai Wu, Tong Li, Song Xue, Jia-Hua Chen, Wan-Qian Zhu
Nuclear Science and Engineering | Volume 196 | Number 8 | August 2022 | Pages 1020-1029
Technical Note | doi.org/10.1080/00295639.2022.2029676
Articles are hosted by Taylor and Francis Online.
To study the influence of a helical wire coil on the convective heat transfer capacity of the cylindrical cooling tube, then to obtain the enhanced cooling characteristics, a comparative analysis is performed between the cases with and without the wire coil based on finite element analysis. In particular, a specific model of the cooling tube with both the smooth inner wall areas and helical wire coil area is established. By comparing the flow velocities, fluid pressures, and convective heat transfer coefficients, etc., the significant effect of a helical wire coil on improving the convective heat transfer capacity is explained quantitatively. In addition, the enhanced cooling mechanism can be described in three points, i.e., increasing the thermal contact area, thinning or destroying the boundary layer, and promoting the formation of turbulence.
