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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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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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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Latest News
First astatine-labeled compound shipped in the U.S.
The Department of Energy’s National Isotope Development Center (NIDC) on March 31 announced the successful long-distance shipment in the United States of a biologically active compound labeled with the medical radioisotope astatine-211 (At-211). Because previous shipments have included only the “bare” isotope, the NIDC has described the development as “unleashing medical innovation.”
S. G. Durbin, M. Yoda, S. I. Abdel-Khalik, D. L. Sadowski
Fusion Science and Technology | Volume 44 | Number 2 | September 2003 | Pages 307-311
Technical Paper | Fusion Energy - Chamber Technology | doi.org/10.13182/FST03-A352
Articles are hosted by Taylor and Francis Online.
Turbulent liquid sheets have been proposed to protect solid structures in fusion power plants by absorbing damaging radiation. Establishing an experimental design database for this flow would therefore be valuable in various thick liquid protection schemes. The effect of initial conditions on the flow free-surface fluctuation was studied experimentally for vertical turbulent sheets of water issuing downwards from nozzles of thickness (small dimension) = 1 - 1.5 cm into ambient air. Sheets issuing from nozzles with both two- and three-dimensional fifth-order polynomial contractions with exit aspect ratios of 6.7 and 10 were investigated at Reynolds numbers ranging from 2 × 104 to 1 × 105. Mean velocity and turbulence intensity profiles were measured just upstream of the nozzle exit using laser-Doppler velocimetry to quantify initial conditions. Planar laser-induced fluorescence was used to visualize the free surface geometry of the liquid sheet in the near-field region up to 25 downstream of the nozzle exit. Fluctuations of the free surface, or surface ripple, are characterized by the standard deviation in the position of the gas/liquid interface.
