[2N10-12] Analysis Technology for Fuel Debris

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[2N12] Challenge for screening of nuclear fuel debris by innovative spectral imaging and its verification by LIBS mapping(3) Elemental mapping by remotely operated LIBS

*Hironori Ohba¹, Munkhbat Batsaikhan¹, Katsuaki Akaoka¹, Takahiro Karino¹, Yoshihiro Iwata¹, Ikuo Wakaida¹, Chisato Sakaguchi², Kan Sakamoto², Hiroaki Muta³ (1. JAEA, 2. NFD, 3. Osaka Univ.)

Keywords:

Remote analysis,Fiber delivered microchip LIBS,Laser-induced acoustic wave,2D elemental mapping

We propose the combination of Hyperspectral Imaging (HSI) and Laser-Induced Breakdown Spectroscopy (LIBS) as a method for remotely analyzing materials in the 1F reactor. Two-dimensional elemental mapping measurements were attempted on oxide samples using a fiber-delivered microchip LIBS probe. The measurements showed that using laser-induced acoustic waves to adjust the laser beam focus effectively obtains optimal LIBS spectra.