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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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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
M. Necati Özişik, H. J. de Nordwall
Nuclear Science and Engineering | Volume 44 | Number 3 | June 1971 | Pages 310-319
Technical Paper | doi.org/10.13182/NSE71-A20164
Articles are hosted by Taylor and Francis Online.
The rate, extent, and spatial variation of carbon loss from a graphite cylinder exposed to steam has been calculated as a function of time. The geometrical arrangement considered was a hollow cylinder with a helium-steam mixture on the inside. At the outer boundary either a zero concentration or a zero steam flux may be maintained. The reaction was assumed to be first order. Changes in the rate of carbon removal with time other than those associated with establishing a steady-state steam concentration gradient were not considered. Calculations using constants derived from current experimental work lead one to conclude that the time needed to establish a concentration gradient is insignificant compared with the times for which the hot core of a high-temperature gas-cooled reactor could be exposed to steam accidentally. This conclusion could change if much tighter graphites or more massive sections, equivalent to thicker cylinders in our analysis, were to be used.