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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
Meeting Spotlight
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.
Richard Ziskind, William E. Kastenberg
Nuclear Science and Engineering | Volume 44 | Number 1 | April 1971 | Pages 86-94
Technical Paper | doi.org/10.13182/NSE71-A18908
Articles are hosted by Taylor and Francis Online.
The stability problem for point kinetics models described by a set of nonlinear differential equations is treated by conversion to a set of Volterra integral equations. The kernels appearing in the resultant set are classified as to monotone behavior and comparison theorems are presented for the various classifications. The comparison theorems are utilized to calculate solution bounds and stability domains for three systems of practical interest: prompt power feedback, single temperature with prompt power coefficient, and the Hansen-Fuchs model. It is shown that similarity transformations are useful for enlarging the stability domain. An iteration procedure is also developed for a particular class of integral operators. This procedure is useful for finding convergent bounds for the true system behavior.