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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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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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Fusion Science and Technology
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Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
Toyoaki Kimura, Kenichi Kurihara, Youichi Kawamata, Kenichi Akiba, Minoru Takahashi, Tsunehisa Terakado, Ryuji Yoshino
Fusion Science and Technology | Volume 32 | Number 3 | November 1997 | Pages 404-415
Technical Paper | Plasma Control Issues for Tokamaks | doi.org/10.13182/FST97-A4
Articles are hosted by Taylor and Francis Online.
A review on the plasma position and current control system for the JT-60 upgrade is presented. In the control system, advanced digital technologies such as the versa module Europe bus, the computer automated measurement and control technology, and Ethernet are applied to fast equilibrium control of the vertically elongated divertor plasmas. The delay of the overall feedback loop with a sampling period of 0.25 ms is <1.3 ms, including the delay of the power supply for the horizontal field coil. Multivariable control with matrix gain has been adopted in the system for decoupling control of the equilibrium parameters such as the plasma current and the horizontal position. The idea of an "algorithm number preprogram" was newly introduced into the control system for more flexible control. This made it possible to dynamically switch the control algorithms at any time of plasma pulse discharge. Several experiences in plasma control are presented. The development of a real-time plasma shape visualization system for advanced monitoring and control is also described.
