Secondary Ion Mass-Spectrometer (SIMS)
The ATOMIKA 4000 shielded SIMS has been installed in 1995 in PSI. It is specifically designed for the analysis of high irradiated samples, both fuel (UO2;, MOX…) and cladding materials (Zircaloy-2, M5…). The maximum authorized activity in the analysis chamber is of 1×101010 Bq 60Co equivalent.
The instrument has been up-graded at the beginning of 2012. The data acquisition system has been completely renewed. The limit of detection of most species is in general few ppm but is strongly depending on the nature of the investigated material. As an example, the limit of detection of 7Li in ZrO2 is about 0.5 ppm. For 11B in ZrO2 it is 10 ppm.