The research team of Professor Tetsuo Sakamoto (Department of Applied Physics, Faculty of Advanced Engineering) of Kogakuin University has succeeded in isotopically visualizing radioactive cesium by developing a new laser and mounting it on a mass microscope.
The research team has developed a high-repetition tunable laser for highly sensitive visualization of radioactive cesium generated by the nuclear accident, and mounted it on a mass spectrometer (FIB-TOF-SIMS).As a result, for the first time in the world, we succeeded in isotopically visualizing radioactive cesium in fine particles that cannot be seen with the naked eye.Development is supported by the Japan Science and Technology Agency (JST).
From April 4th, Japan's largest optical technology exhibition "OPIE '25" will be held at Pacifico Yokohama.The actual laser machine developed this time will be exhibited at "Laser EXPO", one of the seven specialized exhibitions there, and its application examples will be introduced.
