“…The typical on-target DC beam current was 20 pnA over 9 d. The beam interaction also produced a range of other residual nuclei following fusion evaporation on Si, Ca, and Fe target trace contaminant products. The observed reaction products were 42 Ca [6,19,20], 50 Cr [21][22][23], 51 Cr [24][25][26], 51 Mn [27,28], 54 Fe [29,30], 67 Ga [6,31], and 68 Ge [32,33].…”