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Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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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.
Tsuyoshi Misawa, Seiji Shiroya, Keiji Kanda
Nuclear Science and Engineering | Volume 104 | Number 1 | January 1990 | Pages 53-65
Technical Paper | doi.org/10.13182/NSE104-53
Articles are hosted by Taylor and Francis Online.
The Feynman-α experiments were carried out using light-water-moderated and -reflected cores loaded with highly enriched uranium fuel at the Kyoto University Critical Assembly. An experimental technique using a multichannel scaler was developed to improve the accuracy of measurement and to shorten measuring time. Then, the βeff/l values of single and coupled cores with different neutron spectra were measured to demonstrate the capability of the present technique for measuring the prompt neutron decay constant α. Moreover, the Feynman-α method was applied to measuring large subcriticalities. Through these experiments, it is found that the present technique greatly improves the accuracy of a measurement, and the one-point reactor approximation is applicable to a tightly coupled core. It is also found that the subcriticality down to approximately -35 $ can be measured by this method if the position of the neutron detector is chosen carefully, and the present Feynman-α method can be applied to a subcriticality monitoring system.