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Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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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.
J. F. Carew
Nuclear Science and Engineering | Volume 104 | Number 4 | April 1990 | Pages 396-401
Technical Paper | doi.org/10.13182/NSE90-A23737
Articles are hosted by Taylor and Francis Online.
An analytic method for analyzing prompt-critical reactivity transients for a nonlinear energy feedback model is derived. The nonlinear point kinetics equation is replaced by a least-squares equivalent linear equation, and an approximate time-dependent reactivity is determined analytically. Assuming the power burst is infinitely sharp and symmetric about the peak, the transient peak energy, power, and pressure are expressed in terms of the inserted reactivity. The resulting expressions allow the definition of an equivalent step reactivity transient that preserves both the peak energy and power. The method is applied to the case where the feedback nonlinearity is small, and simplified expressions for the transient peak energy and power are determined and shown to approximate the known exact results in the case of a ramp reactivity insertion and a linear energy feedback model.