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Matsuyama-Kada Lab
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The lab studies quantum beams, using accelerator beams to see and measure matter and life.

AboutAbout the lab
Seeing, measuring, and evaluating with particle beams
The Matsuyama-Kada Lab studies techniques that use ion beams and neutron beams from accelerators to "see," "measure," and "evaluate" matter, life, and the space environment.
It works on quantum imaging, which turns elements and luminescence in microscopic regions into images, and on accelerator-based neutron sources and detection technology.
The lab studies everything from device development to measurement and data analysis, including evaluating the effects of radiation on devices and materials for use in space.
Research is mainly carried out at the Fast Neutron Laboratory of Tohoku University, and many of the instruments were built in the course of writing bachelor's, master's, and doctoral theses.
Key terms
- Microbeam
- A particle beam made by an accelerator and focused to a diameter of micrometers to nanometers
- Quantum imaging
- A technique that irradiates a sample with a particle beam or similar to image the distribution of elements and the internal state
- Pulsed neutrons
- A neutron beam generated intermittently in short bursts rather than continuously
NewsLab news
View More ↗ResearchResearch themes
The lab extends ion beams and neutron beams from accelerators into techniques for "seeing," "measuring," and "evaluating" matter, life, and the space environment. It studies quantum imaging, accelerator-driven neutron sources and detection technology, and the evaluation of radiation effects on devices and materials for space, covering everything from instrument development to measurement and data analysis.
*Illustrative imageQuantum imaging with accelerators
A microbeam, made by focusing an ion beam produced by an accelerator to about 1 micrometer, scans a sample to image the distribution of elements and the characteristics of luminescence. The lab works on everything from developing the analytical instruments to applications in biological samples, plants, and materials.
*Illustrative imageResearch using neutron beamlines
Neutrons easily penetrate matter and provide information different from X-rays. The lab develops techniques to generate pulsed neutrons that can be controlled with an accelerator and to accurately evaluate their energy, yield, and spatial distribution.
*Illustrative imageEvaluating radiation effects on devices and materials for space
Commercial off-the-shelf components used in small satellites have not been sufficiently evaluated for resistance to space radiation. The lab builds an irradiation field that simulates the cosmic-ray environment in low Earth orbit using a compact accelerator, and also investigates changes in the optical properties and surface condition of materials.
MembersFaculty
The Matsuyama-Kada Lab consists of faculty members, secretaries, doctoral students who are working professionals, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorShigeo Matsuyama
- Associate ProfessorWataru Kada
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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: “M-42 radiation detector” DLR / CC BY 3.0 de (cropped)
- Quantum imaging with accelerators: “Scanning electron microscope - UFCH JH (2020) 04” Tadeáš Bednarz / CC BY-SA 4.0 (cropped)
- Research using neutron beamlines: “Later stage of the CLARA Accelerator, Daresbury Laboratory” Mystery Ray / CC0 (cropped)
- Evaluating radiation effects on devices and materials for space: “LICIACube CubeSat a companion satellite of Dart Spacecraft” NASA/Johns Hopkins APL/Ed Whitman / Public domain (cropped)
- Related lab (Terakawa Lab): “Clinac” No machine-readable author provided. Egg assumed (based on copyright claims). / CC BY-SA 2.5 (cropped)
- Related lab (Watabe Lab): “Cyclotron ARRONAX” Popocatomar / CC BY-SA 4.0 (cropped)
- Related lab (Hitomi-Nogami Lab): “Silicon wafer researcher” U.S. Department of Energy / Public domain (cropped)
- Related lab (Nuclear Materials Engineering Lab): “U.S. Department of Energy - Science - )” U.S. Department of Energy from United States / Public domain (cropped)
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