te . soe . 2 of - . : . . 4 he me ee a al A ae dakeMthebate. teAAT bd, oP a we o vAie . ‘ | o w . t LE . e .° i wn é fe “ye f a ae r of we i, oo oe f Oa ws Lay = oh * e ,. e at ,. wa LOSig RADIOACTIVITY LOG, RADIOACTIVITY » * tABe a ae RR sent . se one . 4000 ome SF TER DE TORATION 25. oe ba eee100 ‘ se ee DATS AFTER OF TONATION . . ot.- ee mae sat . a ~ bas aren O€ TOMA TION Figures 1 - 3. Logarithmic plots showing radioactive decay of samples listed in Table 1. Absolute levels of curves may be calculated by re- ferring to the columnof Table 1 headed ''Plate count, 1000 days’ (Curves 61-104 follow in Figs. 4-6, p.7 Dates of detonations: Curves 1-6 Curves 7-8 Curves 9-104 ) "Greenhouse" April 21, 1951 "Uncle-Jangle'’ November 29, 1951 'Mike" November 1, 1952 * ee ie k ry Ws fo }4