- Cybersecurity
- Environmental Monitoring
- Funding
- Government
- High performance computing
- Industry
- Remediation
- Research and Development
Show all 11 topics
Who is Japan Atomic Energy Agency?
Japan Atomic Energy Agency is a national research and development institution that conducts nuclear energy, fusion, radiation, and related science and technology programs to support Japanese energy and public policy.
- Nuclear energy research and development
- Fusion energy and plasma physics research
- Nuclear fuel cycle and radioactive waste management
- Decommissioning and environmental remediation technology
- Radiation science, dosimetry, and nuclear safety research
Show more
More About
The agency operates large research facilities across Ibaraki Prefecture and other locations in Japan, and it works with domestic universities, industry partners, and international research organizations. Its work sits within the national energy research framework, where it supports government policy on nuclear technology, safety research, and long-term energy options.
Technical programs span reactor safety and advanced reactor concepts, the nuclear fuel cycle including reprocessing and transmutation research, geological disposal of high-level radioactive waste, and decommissioning of nuclear facilities. The agency also contributes to the response to the Fukushima Daiichi accident through research on debris retrieval, waste treatment, and environmental monitoring.
In fusion research, the agency participates in tokamak experiments and plasma physics, including work associated with the JT-60SA superconducting tokamak, a collaboration with European partners. In accelerator science, it jointly operates the J-PARC facility with KEK, supporting neutron and muon experiments used in materials science, life sciences, and particle physics.
Architectures and technologies associated with these offerings include high-performance computing for simulation of reactor and plasma behavior, remote handling and robotics for hazardous environments, radiation detection and measurement instrumentation, and materials testing under extreme conditions. Modeling software for thermal-hydraulics and neutronics is central to safety analysis work.
Its activities resemble those of national laboratories in other countries that conduct nuclear and energy research, although its mandate and funding structure are specific to Japan. The research supports energy security, decommissioning capability, and workforce development, and it provides a technical basis for regulatory decisions made by Japan's Nuclear Regulation Authority.
In the current solution landscape, the organization is positioned in energy and government research, with active programs in nuclear technology, fusion, accelerator-based science, and environmental remediation. Its technical publications serve government, academic, and industrial audiences.
Our description of Japan Atomic Energy Agency. Updated October 2026.