roe | raArtaul a 1 | SR | _ wee LL. — 20 eee sO TIME (HR) Pag. t.9 . Cumulative Dose tts a Function of Time After the Detonation (90) 4m EXPOSURE, i MANY SOURCES BOR ' | a . i It ad . 1 a a “ ' 0 4 ‘ £XPOSURE, * 34% | | 1 | ' 6 20 " QO ‘ \ ‘ DIVE RGING SOURCE 1Q ' t) ‘ GIL ATF RAL RATIOIS6 | | | 10 | . | l -_-—-J 25 30 $6 CM MASONITE DEPTH DOSE DISTRIBUTION IN CYLINDRICAL PHANTOM, co aciiry, (N MET) Fig. §.40 Comparative Depth Doses for Bilateral Exposure from a Small Source and Multiple Source 47 Rxposure with Cobalt-60 21