[2J10-15] Decommissioning Technology for Fukushima

[2J12] Analysis of particles generated by laser processing and development of their nuclide identification methodology (4)

(1)Production of fine particles from laser irradiated zirconia samples

*Hiroyuki Daido¹, Tomonori Yamada^2,3, Chikara Ito³, Masabumi Miyabe³, Takuya Shibata³, Hiroyuki Furukawa¹, Stephen Wells⁴, Shuichi Hasegawa⁴ (1. Institute for Laser Technology, 2. WERC, 3. JAEA, 4. UTokyo)

Keywords:Aerosol, Fine particles, Laser processing, Decommissioning technology, High speed camera

We are studying the fundamental mechanism of aerosol production during the laser cutting in the nuclear decommissioning relevant to the nuclear debris retrieval. We observed aerosols from the fiber laser irradiated Ziroconia and other materials using a high speed camera. After the experiment, we also observed fine particles withan electron microscope. These result is analyzed and physical interpretation will be reported.