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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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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.
Arne J. W. Andersson
Nuclear Technology | Volume 3 | Number 3 | March 1967 | Pages 147-156
Technical Paper and Note | doi.org/10.13182/NT67-A27869
Articles are hosted by Taylor and Francis Online.
An instrument for measuring the net reactivity input to a reactor system has been designed and used at the Halden Boiling Water Reactor (HBWR), Norway, and at the Ågesta power reactor R3, Sweden. The design is based upon extensive use of passive networks. The instrument has been carefully tested. Test results are presented as gain and phase curves for reactivity to power transfer functions and are compared with the theoretical ones. The agreement is quite satisfactory. The operational experience is good.
