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Nuclear Energy Control Engineering Lab
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The lab pursues nuclear safety through reactor physics and data science.

AboutAbout the lab
The highest level of safety, through reactor physics and data science.
Yamamoto Lab focuses on reactor physics, the discipline concerned with controlling nuclear fission.
Reactor physics is the field that underpins the most fundamental aspects of nuclear safety.
Using data science, AI, and computational science, the lab pursues the world's highest level of safety for nuclear power generation in Japan and around the world.
The lab also values collaboration with companies and other organizations so that its research results are put to practical use.
Key terms
- Reactor physics
- The discipline that predicts how neutrons behave inside a nuclear reactor, in order to control the fission chain reaction.
- Probabilistic risk assessment
- A method of expressing risk numerically by combining how likely an accident is to occur with how large its consequences would be.
- Subcritical
- A state in which a fission chain reaction does not continue even though nuclear fuel is present. How large the margin is serves as an indicator of safety.
NewsLab news
A student received the Student Excellent Presentation Award of the Computational Science Division of the Atomic Energy Society of Japan
A professor and an associate professor, together with a lecturer at the University of Fukui, received the Paper Award of the Atomic Energy Society of Japan
A professor received the Division Excellent Presentation Award of the Computational Science and Technology Division of the Atomic Energy Society of Japan
A lab member received the Excellent Presentation Award of the Reactor Physics Division of the Atomic Energy Society of Japan
A lab member received the Encouragement Award of the Chubu Branch of the Atomic Energy Society of Japan
ResearchResearch themes
The lab conducts research to achieve the world's highest level of nuclear safety through reactor physics, the discipline of controlling nuclear fission. Centered on reactor physics, which predicts the behavior of neutrons, it also works on probabilistic risk assessment and severe accident analysis, making full use of computational science, data science, and AI.
*Illustrative imageCalculating nuclear reactors accurately and quickly
Reactor safety is confirmed through design calculations, so it is important to predict the behavior of the reactor core accurately. The lab develops new computational methods using computational science, data science, and AI. It also works on analysis methods for high-temperature gas-cooled reactors and on high-speed computation using GPUs.
*Illustrative imageResearch on reactor safety
The lab quantitatively evaluates how much the uncertainties in the data and approximations used in calculations affect safety margins. It also works on analysis of the accident at the Fukushima Daiichi Nuclear Power Station, probabilistic risk assessment, and evaluation of how human decisions affect safety.
*Illustrative imageTechnology for measuring subcriticality
At facilities that handle nuclear fuel, it is essential to confirm that the system is subcritical in order to prevent unintended chain reactions. Focusing on the phenomenon in which the number of neutrons fluctuates over time, the lab aims to establish measurement methods that combine theory, measurement, and numerical analysis.
MembersFaculty
Yamamoto Lab consists of faculty members, a secretary, and master's and undergraduate students.As of 2024
- ProfessorAkio Yamamoto
- Associate ProfessorTomohiro Endo
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Kozloduy Nuclear Power Plant - Control Room of Units 3 and 4” Yovko Lambrev / CC BY 3.0 (cropped)
- Calculating nuclear reactors accurately and quickly: “PDC server room” Esquilo / CC BY-SA 3.0 (cropped)
- Research on reactor safety: “Top of Primary Containment Vessel, Unit )” IAEA Imagebank / CC BY-SA 2.0 (cropped)
- Technology for measuring subcriticality: “10,000th Operation at the Annular Core Research Reactor - Sept. )” Nuclear Regulatory Commission from US / Public domain (cropped)
- Related lab (Applied Nuclear Physics Lab): “Gamma-Ray Imaging Spectrometer (GRIS) INSTRUMENT - Chris Miller - DPLA - 88f054714d3aae312b9aa7af03dff630” National Aeronautics and Space Administration. Goddard Space Flight Center. 5/1/1959 / Public domain (cropped)
- Related lab (Fusion Plasma Science and Engineering Lab): “U.S. Department of Energy - Science - )” U.S. Department of Energy from United States / Public domain (cropped)
- Related lab (Energy Magnetohydrodynamics Engineering Lab): “Large Helical Device 2014” National Institute for Fusion Science / CC BY-SA 4.0 (cropped)
- Related lab (Fusion Reactor Engineering Lab): “Baseball II magnetic mirror” Uknown LLNL photographer / Public domain (cropped)
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