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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
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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
Christmas Night
Twas the night before Christmas when all through the houseNo electrons were flowing through even my mouse.
All devices were plugged in by the chimney with careWith the hope that St. Nikola Tesla would share.
Takuya Nagasaka, Takeo Muroga, Tomohito Iikubo
Fusion Science and Technology | Volume 44 | Number 2 | September 2003 | Pages 465-469
Technical Paper | Fusion Energy - Fusion Materials | doi.org/10.13182/FST03-A379
Articles are hosted by Taylor and Francis Online.
The tubing processes for high-purity low-activation V-4Cr-4Ti alloys were developed. From examination on the fabrication process parameters, suitable annealing condition prior to the 3-directional rolling, intermediate annealing condition, and limit for reduction of area for 1 pass at the rolling, were obtained. From microstructural observations, cracks induced during the 3-directional rolling can be attributed to the banding structure of Ti precipitates. Resulting tubes were evaluated by impurity tracing, ultrasonic inspection, eddy current testing, measurements on grain size after recrystallization and tensile tests. Grain size of the tubes after recrystallization was larger than that of the plate with the same thickness at an annealing temperature of 1273 K. At lower annealing temperature, the difference was small, however. Carbon and oxygen contaminations of about 60 and 200 wppm at the maximum, repectively, and defects on the tube wall surface were detected. They can be improved by minor change in the current process. The contamination increased tensile strength, whereas the surface defects smaller than 20 m did not induce significant degradation of tensile properties. The examination of fabrication process parameters and evaluation of the resulting tubes successfully demonstrated the feasibility of vanadium alloys for component materials for fusion reactors.