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Human Factors, Instrumentation & Controls
Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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
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.
W. L. Filippone, Jim E. Morel, Wallace F. Walters
Nuclear Science and Engineering | Volume 112 | Number 1 | September 1992 | Pages 1-15
Technical Paper | doi.org/10.13182/NSE92-A23947
Articles are hosted by Taylor and Francis Online.
Beam source problems are difficult to treat numerically because of the associated singularities in angle and space. For electrons, conventional first collision source techniques offer little help because the cross sections are so large and anisotropic that the first collision source and original source are not very different. By extending the definition of the uncollided flux to include particles that have not deviated significantly from the original beam direction, an extended first collision source is obtained that is smooth enough for use in SN codes. Through the use of effective cross sections, the extended first collision source is determined using standard first collision source techniques. The effective cross sections model electron transport with a reduced number of collisions, but larger deflections per collision. These qross sections are generated using a brute-force SN solution of the space-independent Spencer-Lewis equation on a restricted cone of directions, centered about the beam direction. Several sample calculations are given.