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Demachi Lab
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The lab applies AI to support the safety and nuclear security of nuclear power plants.
AboutAbout the lab
Applying AI to nuclear safety and medical imaging.
The Demachi Lab studies countermeasure technologies that use deep learning (AI) for nuclear security, nuclear safety, and nuclear maintenance at nuclear power plants.
The lab works on technologies that use AI to detect equipment failures and abnormal human behavior, as well as AI that selects information useful for work tasks.
The lab also conducts research on medical imaging, using deep learning to render images of tumors.
Key terms
- Nuclear security
- Efforts to protect nuclear materials and nuclear facilities from malicious acts such as theft and terrorism
- Nuclear power plant maintenance
- Inspecting and repairing the equipment and facilities of a nuclear power plant to keep them in good condition
- Deep learning
- An AI technique that learns features from large amounts of data using neural networks with many stacked layers
NewsLab news
A doctoral student won the Best Student Paper Award at the IIAE international conference
A student won an Excellence Award in the student session of the Japan Society of Maintenology Annual Conference
ResearchResearch themes
The lab develops countermeasure technologies that use deep learning (AI) for nuclear security, nuclear safety, and nuclear maintenance at nuclear power plants. Deep learning is also applied to medical imaging.
*Illustrative imageNuclear Security and Nuclear Safety
The lab aims to ensure the safety and maintenance of people and equipment involved in nuclear power, and to realize the physical protection of nuclear materials. By combining different types of AI models, it builds models that detect malicious behavior such as climbing over a fence.
*Illustrative imageAI Applications in the Nuclear Field
This research applies deep learning models to the nuclear field. The lab develops AI that detects and identifies equipment failures, AI that generates documents for facility maintenance, and AI that selects the information needed for work tasks.
*Illustrative imageTumor Imaging and Radiotherapy
The lab uses deep learning to render images of tumors, aiming to contribute to next-generation radiotherapy. It converts 2D videos of a tumor into 3D videos in real time and predicts the tumor's future motion.
MembersFaculty
The members of the Demachi Lab consist of faculty, project researchers, and doctoral, master's, and undergraduate students.As of 2026
- Project ProfessorKazuyuki DemachiPublications ↗
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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: “Cooling towers of a nuclear power plant” Vsatinet / CC BY-SA 4.0 (cropped)
- Nuclear Security and Nuclear Safety: “Nuclear Plant Security - Barriers ( )” Nuclear Regulatory Commission from US / CC BY 2.0 (cropped)
- AI Applications in the Nuclear Field: “RIAN archive 342337 Kalinin nuclear power plant in Tver Region” Sergey Pyatakov / RIA Novosti / CC BY-SA 3.0 (cropped)
- Tumor Imaging and Radiotherapy: “Anterior Pancoast tumor CT” Soichi Oka, Kenji Ono, Kenta Kajiyam, Katsuma Yoshimatsu / CC BY-SA 4.0 (cropped)
- Related lab (Abe Lab): “Tokamak WEST” Christophe Roux / IRFM / CC BY 4.0 (cropped)
- Related lab (Murakami Lab): “Chooz Nuclear Power Plant-9362” Raimond Spekking / CC BY-SA 4.0 (cropped)
- Related lab (Takata Lab): “Sequoyah Nuclear Power Plant cooling towers” Eric Evenson, USGS / Public domain (cropped)
- Related lab (Miwa Lab (Visualization Laboratory)): “Buoyant jet” Left.tom / CC BY-SA 4.0 (cropped)
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