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Reactor Physics and Fusion Engineering Lab
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A lab that explores how fission reactors and fusion reactors work, starting from physics.
AboutAbout the lab
Exploring the energy systems of nuclear fission and fusion.
The Reactor Physics and Fusion Engineering Lab studies the theory, design methods, and safety of nuclear fission and fusion energy systems.
Its work is based on the physics of atoms, atomic nuclei, and plasmas, together with control theory and systems engineering.
Research is carried out by Professor Fujimoto's group, which works on fission reactors, and Associate Professor Matsura's group, which works on nuclear burning and neutron engineering for fusion reactors and on reactor applications.
Key terms
- Nuclear burning
- A process in which nuclear reactions continue to occur in a chain. It takes place inside fusion reactors and nuclear reactors.
- High-temperature gas-cooled reactor
- A type of nuclear reactor that uses graphite as a moderator. This lab studies the evaluation of core characteristics and applications.
- LLFP
- Nuclides with long lifetimes among those produced by fission. The abbreviation of long-lived fission products.
NewsLab news
Published a paper analyzing nuclear elastic scattering phenomena observed in LHD
A student won the Encouragement Award at the 44th Research Presentation Meeting of the Kyushu Branch of the Atomic Energy Society of Japan
A student won the Outstanding Student Poster Award at the 44th Research Presentation Meeting of the Kyushu Branch of the Atomic Energy Society of Japan
Published a paper predicting neutron spectra of deuterium plasma assuming JT-60SA
Published a paper on the hydrogen absorption performance of Ni-coated Zr spheres for high-temperature gas-cooled reactors
ResearchResearch themes
Targeting fission and fusion reactors, the lab studies the theory, design methods, and safety of energy systems, building on the physics of atoms, atomic nuclei, and plasmas as well as control theory and systems engineering. Currently, a group working on fission reactors and a group working on nuclear burning and neutron engineering for fusion reactors and on reactor applications carry out the research.
*Illustrative imageNeutron Reactions and Characteristics in Nuclear Reactors
From the perspective of reactor physics, the lab seeks to understand the various neutron reactions that occur inside a reactor, including neutron generation, moderation, diffusion, and absorption. Through this, it aims to clarify the characteristics of the reactor.
*Illustrative imageNuclear Burning in Core Plasmas
In the core of a fusion reactor, high-energy particles are produced continuously in many directions. The lab studies the nuclear reaction processes in the core and the phenomena related to nuclear reactions caused by high-energy particles.
*Illustrative imagePhoton and Neutron Engineering for Fusion Reactors
Accurately evaluating the emission spectrum of neutrons produced by fusion reactions, their moderation in the blanket surrounding the core, and the nuclear reactions they induce is essential for making a fusion reactor viable. The lab focuses on the correlation between phenomena in the plasma and blanket characteristics.
*Illustrative imageApplied Research on Fission Reactors
The know-how gained from fission reactors, such as core physics and computational methods, provides important insights for developing future nuclear energy systems, including fusion reactors. Using high-temperature gas-cooled reactors, the lab studies the development of methods for producing tritium for fusion reactors, as well as the transmutation and interim storage of LLFPs.
MembersFaculty
The members of the Reactor Physics and Fusion Engineering Lab consist of faculty, technical staff, postdoctoral researchers, and doctoral, master's, and undergraduate students.As of 2019
- ProfessorNozomu Fujimoto
- Associate ProfessorHideaki Matsura
- Assistant ProfessorIrwan Simanullang
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: “Nuclear fuel pellets at the Greifswald Nuclear Power Plant information center” Siarhei Besarab / CC BY-SA 4.0 (cropped)
- Neutron Reactions and Characteristics in Nuclear Reactors: “Advanced Test Reactor” Argonne National Laboratory / CC BY-SA 2.0 (cropped)
- Nuclear Burning in Core Plasmas: “EAST Tokamak plasma image3” Xiang Gao, Yao Yang, Tao Zhang, Haiqing Liu, Guoqiang Li, Tingfeng Ming, Zixi Liu, Yumin Wang, Long Zeng, Xiang Han et al. / CC BY 3.0 (cropped)
- Photon and Neutron Engineering for Fusion Reactors: “ITER Tokamak mockup” Johannes Reimer / CC BY 4.0 (cropped)
- Applied Research on Fission Reactors: “Kalinin nuclear power plant” SergioBS / CC BY-SA 4.0 (cropped)
- Related lab (原子力エネルギーシステム研究室): “HFIR Refueling July )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
- Related lab (エネルギー創生材料学研究室): “Nuclear Fuel Cycle” No machine-readable author provided. Tungsten assumed (based on copyright claims). / Public domain (cropped)
- Related lab (応用原子核物理・電磁解析研究室): “MichiganFFAGmark1” Lawrence W. Jones / CC BY-SA 3.0 us (cropped)
- Related lab (量子線物理計測研究室): “Radiation Assessment Detector for Mars Science Laboratory” NASA/JPL-Caltech/SwRI / Public domain (cropped)
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