Analyses of Fe, Cr and Ni dissolved in the circulated Pb-Bi by ICP

Kikuchi, Kenji; Saito, Shigeru   ; Hamaguchi, Dai; Tezuka, Masao

JLBL-1 is a circulation loop of Pb-Bi. The loop was operated more than 9000 hrs. During an operation pieces of Pb-Bi are sampled from loop tube, test pieces, filter, electro-magnetic pump and valve. We observed Fe-Cr precipitation at lower temperature part. These materials are dissolved at high temperature part of test loop and transported to the lower temperature part. Interesting matter is how much materials are exited in the Pb-Bi. We analysed Fe, Cr and Ni in the portion of sampled Pb-Bi by ICP mass spectrometer and found that Cr and Fe was over the saturated valuesin LBE.