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

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

In order to establish LBE handling technology, which will be utilized as target of high energy incident protons, a change of chemical composition of circulated LBE in the loop, especially focused on the Fe Cr and Ni, was analyzed by ICP mass spectrometer. Portions of solidified LBE were sampled from the tube, specimens, filter, electromagnetic pump and so on. Consequently it is concluded that dissolved Fe and Cr were saturated in the LBE but not Ni done. Precipitation of Fe-Cr alloy resulted from the differential solubility at temperatures.