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Advanced Fusion Information and Control Science and Engineering Lab
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The lab measures and controls the confinement of high-temperature plasma for nuclear fusion.
AboutAbout the lab
Understanding and controlling the confinement physics of high-temperature plasma
The Advanced Fusion Information and Control Science and Engineering Lab researches how to confine and control plasma hotter than 100 million degrees for fusion power generation.
Using QUEST, the spherical tokamak device at the Research Institute for Applied Mechanics, Kyushu University, the lab develops diagnostics that measure heat and particle flows inside the plasma, as well as control methods based on machine learning.
On the lab's website, it is introduced as the research group "IdoHasegawaKinoshita Lab." of Professor Takeshi Ido, Associate Professor Makoto Hasegawa, and Assistant Professor Toshiki Kinoshita.
In graduate school, the lab provides graduate education as the "High-Temperature Plasma Properties and Control Engineering Lab" of the Plasma and Quantum Science and Engineering major, Department of Interdisciplinary Engineering Sciences, Interdisciplinary Graduate School of Engineering Sciences.
Key terms
- Tokamak
- A doughnut-shaped device that confines high-temperature plasma with a magnetic field. QUEST is one type
- Heavy ion beam probe
- A method that injects an ion beam into plasma and measures fluctuations in potential, density, and magnetic field from the ions that come out
- Thomson scattering diagnostics
- A method that injects laser light into plasma and measures electron temperature from the wavelength of the scattered light and electron density from its intensity
NewsLab news
Lab staff member wins a prize at the 3rd Familiar Research DX Contest
Lab succeeds in detecting a heavy ion beam probe signal on the PLATO tokamak
ResearchResearch themes
To realize a fusion power reactor, it is necessary to generate and confine plasma hotter than 100 million degrees, and to understand and control its properties. The lab develops diagnostics to investigate plasma properties and, based on that knowledge, develops methods to control confinement.
*Illustrative imageControlling Particles at High-Temperature Metal Walls
During long-duration discharges, the wall heats up and particle retention in the wall saturates, so pumping can no longer be done sufficiently. On QUEST, the lab controls retention with a high-temperature metal wall to create conditions close to a fusion reactor, and advances research on particle control.
*Illustrative imageMeasuring Heat and Particle Flows in Plasma
Heat and particle flows are thought to be caused by fluctuations called turbulence. To measure plasma hotter than 1 million °C without touching it, the lab develops and upgrades the heavy ion beam probe (HIBP), microwave reflectometer, and Thomson scattering diagnostics.
*Illustrative imageDeveloping the Control System for QUEST
On QUEST, which is equipped with coils that create magnetic fields, heating equipment, and fuel supply, the lab develops machine-learning-based real-time evaluation of plasma shape and control methods built on it. Long-duration data acquisition and real-time measurement are also challenges.
*Illustrative imageConfinement Mechanisms in Spherical Tokamaks
A spherical tokamak has the same doughnut shape as a standard tokamak, yet the dependence of its confinement performance on magnetic field strength, plasma current, and other parameters differs greatly. Using QUEST, which may allow the shape to be changed within a single device, the lab investigates the causes of how shape affects confinement performance.
MembersFaculty
The members of the Advanced Fusion Information and Control Science and Engineering Lab consist of faculty members, administrative assistants, doctoral, master's, and undergraduate students, and research students.As of 2025
- ProfessorTakeshi Ido
- Associate ProfessorMakoto Hasegawa
- Assistant ProfessorToshiki Kinoshita
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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: “Experimental hall of the Wendelstein 7-X stellarator at IPP Greifswald 05” Siarhei Besarab / CC BY-SA 4.0 (cropped)
- Controlling Particles at High-Temperature Metal Walls: “Tungsten Filament” Yakushev.dim / CC BY 4.0 (cropped)
- Measuring Heat and Particle Flows in Plasma: “FHF02SC heat flux sensor self calibrating” Hukseflux Thermal Sensors B.V. / CC BY 4.0 (cropped)
- Developing the Control System for QUEST: “COMPASS tokamak control room” Sintakso / CC BY-SA 4.0 (cropped)
- Confinement Mechanisms in Spherical Tokamaks: “QUEST tokamak (cropped)” Dawachin / CC BY-SA 4.0 (cropped)
- Related lab (先進プラズマ理工学研究室): “TCABR lab” Marcos Santos / CC BY-SA 4.0 (cropped)
- Related lab (核融合プラズマ物性制御工学研究室): “Soldering practice object for tokamak construction, in park of Tsukuba Expo Center” Syced / CC0 (cropped)
- Related lab (シミュレーションプラズマ物理学研究室): “Nuclear Physicists Wield HPC to Uncover Magic Isotopes” OLCF / CC BY 2.0 (cropped)
- Related lab (非平衡プラズマ力学研究室): “IPT-plasma-jet” Endeavour88 / CC BY-SA 4.0 (cropped)
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