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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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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High temperature fission chambers engineered for AMR/SMR safety and performance
As the global energy landscape shifts towards safer, smaller, and more flexible nuclear power, Small Modular Reactors (SMRs) and Gen. IV* technologies are at the forefront of innovation. These advanced designs pose new challenges in size, efficiency, and operating environment that traditional instrumentation and control solutions aren’t always designed to handle.
Paul Nelson, Jr.
Nuclear Science and Engineering | Volume 43 | Number 2 | February 1971 | Pages 154-158
Technical Paper | doi.org/10.13182/NSE71-A21263
Articles are hosted by Taylor and Francis Online.
The mean time to destruction of a neutron is shown to be equal to the reciprocal unity-weighted loss rate for a general neutron transport problem. The mean production time and reciprocal importance-weighted loss rate are shown to be similar, but slightly different. The results are illustrated for a simple model problem.
