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Division Spotlight
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.
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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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.
B. E. Simmons, J. S. King
Nuclear Science and Engineering | Volume 3 | Number 5 | May 1958 | Pages 595-608
Technical Paper | doi.org/10.13182/NSE3-595-608
Articles are hosted by Taylor and Francis Online.
If a burst of neutrons is injected into a reactor, the rate of prompt decay of the resultant flux should be proportional to the reactivity in dollars as measured from prompt critical. The proportionality constant is the ratio of the effective delayed neutron fraction to the prompt neutron generation time and can be determined by pulsing the reactor at (delayed) critical. Experiments with distributed poison in several highly enriched, hydrogen-moderated critical assemblies indicate that such pulsed reactivity measurements are reliable at least as far as