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Radioactive Waste Management Lab (Institute for Integrated Radiation and Nuclear Science)
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A lab that works to reduce the environmental impact of radioactivity released from nuclear facilities.

AboutAbout the lab
Supporting the safe use of nuclear power
The Radioactive Waste Management Lab conducts research to reduce the environmental impact of radioactivity released from nuclear facilities.
Research on managing the radioactive waste produced by nuclear facilities is essential for using nuclear power safely.
The lab studies the analysis, decontamination, and remediation of radioactive contamination, the assessment of environmental impacts from accidents and from normal operation, and the behavior of hazardous substances in the environment.
The lab is located at the Institute for Integrated Radiation and Nuclear Science on the Kumatori Campus, where it is known as the Radioactive Waste Control Engineering research division.
Key terms
- Decontamination
- Removing or reducing radioactive materials that have attached to soil, buildings, and other surfaces
- Isotope ratio
- The proportions in which atoms of the same element with different masses (isotopes) are present. It provides clues to where a substance came from
- Radiation dose
- The amount of radiation a person has received
ResearchResearch themes
With the aim of reducing the environmental impact of radioactivity originating from nuclear facilities, the lab works on the analysis, decontamination, and remediation of radioactive contamination, the assessment of risks associated with nuclear power use, and the elucidation of how hazardous substances behave in the environment.
*Illustrative imageAnalysis, decontamination, and remediation of radioactive contamination
To restore environments contaminated by nuclear accidents, the lab develops adsorbents and models for efficient decontamination. It detects strontium, uranium, and plutonium in environmental samples and precisely measures their isotope ratios to trace the origin of radioactive elements.
*Illustrative imageRisk assessment for nuclear power use
The lab simulates the consequences of radioactive releases from a nuclear facility accident under a variety of conditions, and assesses the resulting contamination of surrounding areas and radiation doses. It also develops methods for measuring low-level radioactivity and studies the environmental impact of normal operation.
*Illustrative imageBehavior of hazardous substances in the environment
Through experiments and analysis, the lab studies how hazardous trace elements, such as radioactive elements and heavy metals, move and change form in the environment. It also studies environmental remediation methods that use the mechanisms by which elements transfer from soil to plants and from seawater to seaweed.
MembersFaculty
- Associate ProfessorSatoshi Fukutani
- Assistant ProfessorYuji Shibahara
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: “Dry Storage of Spent Nuclear Fuel ( )” Nuclear Regulatory Commission from US / CC BY 2.0 (cropped)
- Analysis, decontamination, and remediation of radioactive contamination: “Decontamination waste - Iitate, Fukushima” Olivier Evrard, J. Patrick Laceby, and Atsushi Nakao / CC BY 4.0 (cropped)
- Risk assessment for nuclear power use: “De Molen (windmill) and the nuclear power plant cooling tower in Doel, Belgium (DSCF3859)” Trougnouf / CC BY 4.0 (cropped)
- Behavior of hazardous substances in the environment: “Earthworm burrows in a soil column” Wiebke Mareile Heinze, Denise M. Mitrano, Elma Lahive, John Koestel and Geert Cornelis / CC BY-SA 4.0 (cropped)
- Related lab (Radioactivity Environmental Dynamics Engineering Lab (Institute for Integrated Radiation and Nuclear Science)): “Radioactive contamination monitor EKO-C” Łukasz Karolewski / CC BY-SA 4.0 (cropped)
- Related lab (Disaster Prevention Technology and Policy Lab): “Yellowstone flood event 2022 swollen Lamar River and Lamar Valley ( )” Yellowstone National Park / Public domain (cropped)
- Related lab (Fluid Resources and Energy Lab): “Liaohe oil field” Yoshi Canopus / CC BY-SA 4.0 (cropped)
- Related lab (Natural and Social Environment Disaster Prevention Planning Lab): “Upper Marikina River Basin Protected Landscape dammed by Wawa Dam” Arius1998 / CC BY-SA 4.0 (cropped)
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