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Boundary Plasma Experiment and Analysis Lab
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A lab that experimentally elucidates the self-organized structures of plasma turbulence through precise measurement.
AboutAbout the lab
Experimentally exploring structure formation in turbulent plasma
The Boundary Plasma Experiment and Analysis Lab experimentally studies turbulent plasma and its structure formation.
Turbulence is thought to play a major role as a mechanism by which plasma escapes (turbulent transport), and understanding it is essential for realizing nuclear fusion.
The main education and research theme is how to precisely measure fluctuations at various time and spatial scales, and how to analyze the resulting data to find new insights and laws.
On the lab's website, it is introduced under the name "Nagashima Lab."
Key terms
- Plasma
- A state of matter that exists universally in the universe. It is the subject of research leading to an understanding of nature and to nuclear fusion.
- Turbulence
- A state in which fluctuations at various time and spatial scales interact with one another. It is thought to cause plasma to escape.
- Tomography
- A technique that reconstructs the two-dimensional structure of turbulence from measurement data of plasma emission.
ResearchResearch themes
The main goal of this lab is to experimentally elucidate the self-organized structures of plasma turbulence. To this end, it works on observing the two-dimensional structure of turbulence, studying turbulence in the peripheral plasma, studying the statistical laws of transport, and developing advanced plasma measurement methods.
*Illustrative imageObserving the 2D Structure of Turbulence with Tomography
Using a technique called tomography, the lab observes how the two-dimensional structure of turbulence changes over time.
*Illustrative imageTurbulent Plasma in the Boundary Layer
The lab studies turbulent plasma that appears in the boundary layer between the confined plasma and the surrounding plasma.
*Illustrative imageStatistical Laws and Behavior of Turbulent Transport
The lab experimentally investigates how turbulent transport occurs stochastically, including its statistical laws and dynamic behavior.
*Illustrative imageObserving Particle Transport in the Plasma Edge
The lab observes how particles are carried by turbulence in the edge (peripheral region) of the plasma.
MembersFaculty
The members of the Nagashima Lab consist of faculty, technical staff, administrative assistants, and master's students.As of 2026
- Associate ProfessorYoshihiko Nagashima
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: “MSNW Fusion Rocket Prototype” Alan Boyle, GeekWire and MSNW Inc (now defunct). / CC BY-SA 4.0 (cropped)
- Observing the 2D Structure of Turbulence with Tomography: “Itoh Research Center for Plasma Turbulence in Chikuchi Q Univ” Hot cake syrup / CC BY-SA 3.0 (cropped)
- Turbulent Plasma in the Boundary Layer: “Flow structure comparison between linear and serpentine plasma actuators” Cpor / CC BY-SA 4.0 (cropped)
- Statistical Laws and Behavior of Turbulent Transport: “Laminar-turbulent transition” Gary Settles / CC BY-SA 3.0 (cropped)
- Observing Particle Transport in the Plasma Edge: “Plasma Detection Instrument” NASA/JPL-Caltech / Public domain (cropped)
- Related lab (定常プラズマ理工学分野): “Demo stv” Patron974 / CC BY-SA 4.0 (cropped)
- Related lab (定常プラズマ制御学分野): “MAST bottom view ( )” Andy Busse / CC BY-SA 2.0 (cropped)
- Related lab (定常プラズマ加熱分野): “MAST side view ( )” Andy Busse / CC BY-SA 2.0 (cropped)
- Related lab (プラズマ
波動理工学分野): “NASA magnetosphere plasma waves diagram” Credits: NASA’s Goddard Space Flight Center/Mary Pat Hrybyk-Keith / Public domain (cropped)
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