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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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Powering the future: How the DOE is fueling nuclear fuel cycle research and development
As global interest in nuclear energy surges, the United States must remain at the forefront of research and development to ensure national energy security, advance nuclear technologies, and promote international cooperation on safety and nonproliferation. A crucial step in achieving this is analyzing how funding and resources are allocated to better understand how to direct future research and development. The Department of Energy has spearheaded this effort by funding hundreds of research projects across the country through the Nuclear Energy University Program (NEUP). This initiative has empowered dozens of universities to collaborate toward a nuclear-friendly future.
Toshihiro Yamamoto
Nuclear Science and Engineering | Volume 125 | Number 1 | January 1997 | Pages 19-23
Technical Paper | doi.org/10.13182/NSE97-A24251
Articles are hosted by Taylor and Francis Online.
First-order perturbation formalisms, representing a change in the eigenvalue of the neutron Boltzmann transport eigenvalue equation due to the boundary condition change, are derived. The same expression for first-order perturbations is also obtained using Rahnema’s procedure. The formalisms obtained are applicable to the general boundary condition. These formalisms are verified, and their accuracy is estimated by applying the formalisms to systems whose boundary conditions deviate slightly from the standard vacuum and white boundary conditions.
