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Division Spotlight
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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.
George Patrick Lasche
Nuclear Science and Engineering | Volume 83 | Number 1 | January 1983 | Pages 162-173
Technical Paper | doi.org/10.13182/NSE83-A17997
Articles are hosted by Taylor and Francis Online.
A “back-of-the-envelope” method is presented for estimating neutron-induced radionuclide populations. The method uses energy-averaged neutron-reaction cross sections as base data and accounts for nonequilibrium nuclide formation by any sequence of transmutations; it provides for cases in which nuclides in transmutation sequences may be produced in more than one way or may decay or react to produce more than one product nuclide, and it accounts for both constant physical removal from circulating fluids and the severe depletion of parent nuclei. Evaluation in a series of time steps is not required; the calculation is done only for the time of interest. Estimates of neutron-induced radionuclide populations are made from the sum of population contributions corresponding to the most significant transmutation sequences by which the radionuclide is formed. Transmutation sequences are defined in such a way that population contributions corresponding to them can be evaluated from either exact analytic solutions or from a simple approximate procedure that always yields an upper bound to population contribution.