[3H05-10] Technologies for Dismantling, Decontamination and Evaluation

[3H08] Development of a cavity ringdown spectroscopic apparatus for DC glow discharge plasma

*Yusuke Maruyama¹, Ryohei Terabayashi¹, Kaoru Inoue¹, Masabumi Miyabe³, Hiroyuki Daido², Tomonori Yamada^3,4, Chikara Ito³, Takuya Shibata³, Shuichi Hasegawa¹ (1. UTokyo, 2. ILT, 3. JAEA, 4. WERC)

Keywords:Laser spectroscopy, DC glow discharge

In the safety decommissioning of Nuclear facilities, analyzing the composition and amount of the radioactive waste is required. For this purpose, we compose an analytical method based on cavity ring-down spectroscopy combined with an atomization and excitation by a DC glow discharge to obtain quantitative information of the target nuclides. The experimental results using the thulium standard samples with developed spectrometer will be presented.