eh 200 one ao : . fot 8 » . 2 : «4 . ae . St. | * . * t,t 4 | i on a ee ee ‘ i1 ' | i 1 . 150 Pp ep ee eee eee 1 i : : wae a ~~ re ee ey — -+ L : * . : ee . y Eva cua hicar AT SHR we mee eee -o ode an i . i | : t : : t =L a ‘ ‘ i i aq } z }- t ts i ! 2 o a ' 100 pe wee <{ t t :o | |! : { : : i SO }—- 25 = ; ! FALLOUT 4-5 HR ‘ | 10 20 reo} Fig. 1.3 \ : | | ! x” qo J + a 50 a60 Cumulative Dose as a Function of Time After the Detonation PER CENT AIR DOSE AT SURFACE * Br ALD Doni SS Lo Muy byfe & arene 7 oeae ep 4 DATE —, STATUS VERIFIED UNCLASSIFIED , i : TIME (HR} 4 eee ae ee : t °o 4m EXPOSURE, MANY SOURCES RATIOLS& BILATERAL EXPOSURE, i 7NX ! 10 i i fe. . VHF 1 | a i i :1 o DIVERGING SQURCE | 39%" ; 5 , ' ! | ! i ! ; , | | ' i | 15 20 25 30 J 10 ------- : |. x~* S 4 36 CM MASONITE _ DEPTH DOSE DISTRIBUTION IN CYLINDRICAL PHANTOM, COM FACILITY, (NMR I) t Fig. 1.4 | i i ; [ i Comparative Depth Doses for Biltteral Exposure from a Small Source and Atulliple Source ts Exposure woth Cobalt -60 21 as meeONG