Polarization measurement in boiling nitric acid solution including the radioactive elements by using a small test cell with the spectral analysis

Kato, Chiaki   ; Ueno, Fumiyoshi  ; Yamamoto, Masahiro ; Hakamatsuka, Yasuyuki; Ban, Yasutoshi  ; Morita, Yasuji  ; Uchiyama, Gunzo ; Nojima, Yasuo*; Fujine, Sachio*

Reprocessing process solution including Pu and Np may accelerate corrosion of the stainless steel because of oxidizing states in boiling nitric acid. The small electrochemical test cell with a spectral analysis function was developed for the purpose of evaluating corrosion of the stainless steel and oxidizing states of Pu and Np ions in a boiling nitric acid solution. The relationship between corrosion states of the stainless steel and oxidizing states in boiling nitric acid solution can be confirmed.