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Takata Lab
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The lab evaluates the risks of nuclear facilities and works to apply that information to decision-making.
AboutAbout the lab
Thinking about safety by understanding risk.
The Takata-Narukawa Lab studies the risks hidden in large engineering systems such as nuclear power plants.
Its starting point is the idea that no engineering system is absolutely safe.
Because many events can occur and the uncertainty is large, the lab develops assessment methods by combining basic experiments with numerical simulation.
It also studies how to use the risk information obtained from these assessments in decision-making.
Key terms
- Risk assessment
- The task of estimating, for possible accidents and similar events, how likely they are to occur and how large their impact would be
- Uncertainty
- The range by which the results of a prediction or assessment may deviate. For nuclear facilities, many events must be considered, so the range becomes large
- Numerical simulation
- A method of expressing a phenomenon with mathematical equations and reproducing it through computer calculation
NewsLab news
Takata-Narukawa Lab launched
Paper published in Nucl. Eng. Des.
A student received the Fellow Award from the Atomic Energy Society of Japan
A doctoral student and Assistant Professor Narukawa received the Encouragement Award from the Risk Division of the Atomic Energy Society of Japan
A doctoral student received the Paper Award from the Health Physics and Environmental Science Division of the Atomic Energy Society of Japan
ResearchResearch themes
The lab conducts research to understand, both qualitatively and quantitatively, the risks hidden in large and complex engineering systems such as nuclear power plants. It develops assessment methods using basic experiments and numerical simulation, and studies how to use risk information in decision-making.
*Illustrative imageDeveloping Risk Assessment Methods
The range of events that can occur at a nuclear power plant is wide, and the uncertainty is large. To assess these events logically, the lab develops methods that use numerical simulation in addition to basic experiments.
*Illustrative imageRisk Information and Decision-Making
The lab examines what characteristics the information obtained from risk assessment has and how it should inform decision-making. This also contributes to training people who can make use of risk information where decisions are made.
MembersFaculty
The members of the Takata-Narukawa Lab consist of faculty, academic specialists, doctoral and master's students, research students, and undergraduate students.As of 2026
- ProfessorTakashi TakataPublications ↗
- Project Associate ProfessorTakafumi NarukawaPublications ↗
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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: “Sequoyah Nuclear Power Plant cooling towers” Eric Evenson, USGS / Public domain (cropped)
- Developing Risk Assessment Methods: “RayleighBernardConvection” LBMethod.org/jonas / CC BY-SA 3.0 (cropped)
- Risk Information and Decision-Making: “Kozloduy Nuclear Power Plant - Control Room of Units 3 and 4” Yovko Lambrev / CC BY 3.0 (cropped)
- Related lab (Murakami Lab): “Chooz Nuclear Power Plant-9362” Raimond Spekking / CC BY-SA 4.0 (cropped)
- Related lab (Abe Lab): “Tokamak WEST” Christophe Roux / IRFM / CC BY 4.0 (cropped)
- Related lab (Demachi Lab): “Cooling towers of a nuclear power plant” Vsatinet / CC BY-SA 4.0 (cropped)
- Related lab (Miwa Lab (Visualization Laboratory)): “Buoyant jet” Left.tom / CC BY-SA 4.0 (cropped)
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