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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.
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International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
Mario Dalle Donne, Giancarlo Sordon+
Fusion Science and Technology | Volume 17 | Number 4 | July 1990 | Pages 597-635
Technical Paper | Blanket Engineering | doi.org/10.13182/FST90-A29196
Articles are hosted by Taylor and Francis Online.
The design of a fusion reactor blanket based on a bed of lithium-containing ceramic pebbles or a mixture of ceramic and metallic pebbles requires knowledge of the effective thermal conductivity of such beds. Binary mixtures of spheres with the same diameter but different conductivities as well as beds formed by one type of sphere are investigated. The pebbles are made of Al2O3 (diameter = 1, 2, and 4 mm), Li4SiO4 (diameter = 0.5 mm), aluminum (diameter = 2 mm), and steel (diameter = 2 and 4 mm). The experimental apparatus consists of a stainless steel cylinder with a heating rod along the symmetry axis. The pebble bed is contained in the annular space between the two concentric cylinders. Experiments with stagnant and flowing gas are performed. The experimental values of the effective thermal conductivity and the wall heat transfer coefficient are compared with those predicted by correlations available from the literature. On the basis of the present experimental results, modifications of the existing models are suggested.
