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Division Spotlight
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.
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
Senate committee hears from energy secretary nominee Chris Wright
Wright
Chris Wright, president-elect Trump’s pick to lead the U.S. Department of Energy, spent hours today fielding questions from members of the U.S. Senate’s committee on Energy and Natural Resources.
During the hearing, Wright—who’s spent most of his career in fossil fuels—made comments in support of nuclear energy and efforts to expand domestic generation in the near future. Asked what actions he would take as energy secretary to improve the development and deployment of SMRs, Wright said: “It’s a big challenge, and I’m new to government, so I can’t list off the five levers I can pull. But (I’ve been in discussions) about how to make it easier to research, to invest, to build things. The DOE has land at some of its facilities that can be helpful in this regard.”
J. A. Favorite, W. M. Stacey, Jr.
Nuclear Science and Engineering | Volume 125 | Number 1 | January 1997 | Pages 101-106
Technical Note | doi.org/10.13182/NSE97-A24258
Articles are hosted by Taylor and Francis Online.
A new variational functional for space-time neutronics is presented. This functional is stationary about the integro-differential form of the diffusion equation, in which the delayed neutron source is expressed as a convolution integral of the flux, and an integro-differential adjoint flux equation. The new functional is used to derive a quasi-static method that is similar to the improved quasistatic (IQS) method, except that the equation for the flux shape uses a different expression for the delayed neutron source. In a one-dimensional sub-prompt critical test problem, the new variational quasi-static method was slightly more accurate than the IQS method.
