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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
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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Latest News
Can hydrogen be the transportation fuel in an otherwise nuclear economy?
Let’s face it: The global economy should be powered primarily by nuclear power. And it probably will by the end of this century, with a still-significant assist from renewables and hydro. Once nuclear systems are dominant, the costs come down to where gas is now; and when carbon emissions are reduced to a small portion of their present state, it will become obvious that most other sources are only good in niche settings. I mean, why use small modular reactors to load-follow when they can just produce that power instead of buffering it?
Xuelong Fu, Jie Tao, Dunwen Zuo
Nuclear Science and Engineering | Volume 194 | Number 1 | January 2020 | Pages 69-83
Technical Paper | doi.org/10.1080/00295639.2019.1654328
Articles are hosted by Taylor and Francis Online.
B4C/CF/PI/AA6061 hybrid composite laminates (BCPAs) with different configurations were fabricated using a hot molding process and then were irradiated by a 60Co gamma ray with various doses (250, 500, 750, and 1000 kGy) under ambient conditions. The effects of gamma irradiation on the morphological, physical, and thermal properties of the BCPAs were evaluated correspondingly. It was shown that the specimens maintained good interfacial adhesion even after gamma irradiation up to 1000 kGy and that no obvious delamination, swelling, and surface irradiation damage could be observed. Fourier transform infrared spectroscopy of the BCPAs after gamma irradiation indicated no obvious discrepancy when compared with that of nonirradiated specimens. The specimens still maintained good thermal stability with the experimental temperature up to 400°C. When the specimens were gamma irradiated with the dose of 750 kGy, the thermal stability of the BCPAs was optimal. Polyimide resin under gamma irradiation was inclined to form free radicals close to each other and underwent radiation decomposition, a chain scission and cross-linking reaction, and a secondary cross-linking reaction. By analyzing the C-C bond, C-O bond, and C = O bond in the C1s spectrum, the relative intensity of the C = O bond decreased with the irradiation dose; moreover, gamma irradiation caused the decomposition of a certain amount of the oxygen functional group C = O.