radioactivity (2300 —4700 counts/min/50 g plant ash) was associated with oxalate precipitate. A small amount of activity in the Zn groupis attributed to Zn®> produced by reaction
zn* (n,y) from Zn employed in the mechanical parts of the bomb. Sr-Ba radioactivity was
0.1 that of the rare earth group. Distribution of the radioactive elements was nearly the
same as that found on the No. 5 Fukuryu-Maru.
le tiesew
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