[3C10-15] Decommissioning Technology for Fukushima 2

[3C12] Analysis of particles generated by laser processing and development of their nuclide identification methodology

(3)Observation of fine particles produced during a laser cutting using a high speed camera

*Hiroyuki Daido¹, Tomonori Yamada², Chikara Ito², Masabumi Miyabe², Takuya Shibata², Shuichi Hasegawa³ (1. Institute for Laser Technology, 2. JAEA, 3. Univ. of Tokyo)

Keywords:Laser cutting, aerosol, plume, decommissioning

We are studying a mechanism of aerosol production during a laser cutting for fuel debris retrieval. Among this study, specifically we use to irradiate samples made of metal, ceramics and concreate using high power fiber laser. In the experiments, we observe and record the plumes from laser irradiated samples using a high speed camera. Based on the precise observation of these record, we make physical interpretation of the observed phenomena.