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Quantum Beam Science Lab
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A lab that uses quantum beams to explore the microscopic world of atoms and molecules.
AboutAbout the lab
Exploring the microscopic world with quantum beams
The Quantum Beam Science Lab uses quantum beams to accurately understand the properties of nanoscale matter, which are determined by the behavior of atoms and molecules.
The lab creates cutting-edge nanotechnology based on quantum beams, aiming to extend it to life science, materials science, and space science.
The lab has four accelerators that generate quantum beams such as ions, electrons, and photons, as well as various laser systems.
Key terms
- Quantum beam
- A bundle of ions, electrons, photons, or other particles with aligned direction and energy, sent flying together
- Accelerator
- A device that accelerates particles such as ions and electrons to high energy using electric fields and other means
- Cluster
- A small aggregate made up of a few to several thousand atoms or molecules
NewsLab news
View More ↗ResearchResearch themes
The lab directs quantum beams, such as ion beams from accelerators, at materials and studies the reactions caused by the collisions. Its research ranges from fundamental atomic and molecular physics to applications in nanofabrication, life science and medicine, space, and nuclear fusion.
*Illustrative imageHow fast ions break down biomolecules
The lab is a world pioneer in studying how molecules in liquids, and biomolecules contained in liquids, are broken apart by fast ions and what molecules are formed. The results provide fundamental data for cancer radiotherapy and for the effects of space on the human body.
*Illustrative imageNew nanofabrication with quantum beams
Using ion beams of clusters (aggregates of atoms) and beams of heavy particles with very high energy, the lab achieves nanofabrication for next-generation microscopic devices, molecular imaging of biomaterials, and mass spectrometry at atmospheric pressure.
*Illustrative imageTrapping ions to explore the universe
The lab has developed devices that confine ion beams in a limited space, allowing long-duration observation of rare quantum-level phenomena. It has detected fluorescence from a new molecule, which helps explain how organic molecules survive intact in space.
*Illustrative imageAtomic collisions in fusion plasmas
The lab experimentally studies atomic collision processes involved in fuel supply, removal of impurities and fusion ash, and plasma diagnostics, all of which are essential for keeping plasma burning in future fusion reactors.
MembersFaculty
The Quantum Beam Science Lab consists of the Accelerator Group and the Advanced Beam Applications Group, made up of faculty members and students.
- ProfessorManabu Saito
- ProfessorTakuya Majima
- Associate ProfessorHidetsugu Tsuchida
- LecturerToshio Seki
- Assistant ProfessorMakoto Imai
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: “Ion Beam - GPN” NASA/GRC / Public domain (cropped)
- How fast ions break down biomolecules: “DNA damage from IR” Huang, RX. / CC BY 4.0 (cropped)
- New nanofabrication with quantum beams: “XBio illustration – Focused Ion Beam Sem” explorebiology / CC BY 4.0 (cropped)
- Trapping ions to explore the universe: “Dual linear ion trap” Mkotl / CC BY-SA 3.0 (cropped)
- Atomic collisions in fusion plasmas: “MSNW Fusion Rocket Prototype” Alan Boyle, GeekWire and MSNW Inc (now defunct). / CC BY-SA 4.0 (cropped)
- Related lab (Nano Material Properties Engineering Lab): “Holifield charging chains and high-energy acceleration tubes ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
- Related lab (Quantum Beam Materials Analysis Lab): “High School Student Conducting a X-Ray Diffraction Test” 高柏瑋
（Po-Wei Kao, or Powei Kao） / CC BY-SA 4.0 (cropped) - Related lab (Propulsion Engineering Lab): “Xenon hall thruster” Jet Propulsion Laboratory / Public domain (cropped)
- Related lab (Mathematical Life Sciences Lab): “Shorea robusta leaf pattern” Subhashish Panigrahi / CC BY-SA 4.0 (cropped)
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