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Energy Commissiorl, will use i:-t his briegi~;,lacttgre is produced a blast ;vave and the.mal and initi if viewed without protective giasses. . .. that of radiation exposure from fallout. At tlxe time of detonation a large nuraher of cifferer~~ raaiaactive subtion of a second to many years (:he ‘half-life is the time m al tc%lose one-half of its radioactivity). 9 high in the air these :“adioiso”mpes Led with fine psrticles that settle relato the earth thus pro~iding time for the ‘ ., e ::.ort-lived isotopes to decoy and also the ratiiois~te;ss will become associated principally
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The distribution of the nearby fpllout (several near tha Earthts surface will b. determine& principally by the size of tho particles formed, their position in tha uurfaco over which the burst occurs. Figarg ~F presents one gen.ralised corke t of such initial dii%tribution in the cloud and stem. ! ha infiuence of the ~hffi factor - principal one being penetrating gaamwkray$,:’k these are lbsorbed by the body, a certain lount C# blo&u@cal damage istic of fallout material is the deca~ qf its: radioactive according to the principal of (tirne)-Ao l for l,vory ssven fold lapse of time after a nuclefa~ dW~- tion there will ba l decrease in activity. &w” .- For exmsple, frt tkle event fallol.t occllrs ore hour after detonation, the activity ~il’,n~=be only l/10 Of its initial value by ti’e seventh hour. .... ‘.otal possible
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(b) this is the amount of fallout from a single , Igh-yield The unit of radiation exposure is .xgw88sed as ~ ducing the contamination of the envlronaent ef,chi from normal housing, and of the fatter @ de b ~~ suggest regions where might be expected to rcent migkit become ill tlat of falio om the map, uro or dose ut drops off ad Amtela fo that as onl poatxn to people in tne United States each 1e fnam are roufiquivalent, i.e. 10 of 8 roentg~.
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that is tho determining factor. Thg 1/10 r~t#aa poaure, glvon lbove, from s11 tests te dato @ the As ou know, thero wac an umoxpti; akift in ascertained lir and mrface craft wero inaSi8tel dlato Kwajaleinwh~re they were given the beat pooa~~le redid flown from tho Wittad states to Kwajalein and ?dmained with them for swTeralwinks until they were all well OE ths all neuburn kavo been normal. It is hoped pie may be returned to %ngelap iA the fall As a precautionary 8aasur*, Er. additional lslb Inhabitant were also evacuatad from their hcmo islaad bod dose of 15 roentgons with no observable effacts Klit or external or internal. They wero returned to Utir~k
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estimated whole body exposuro of tha Rowolapss* !~alt lnd exper lnce diarrhea during tha first two days. m tha third day theso symptoms subsided without therapy then waa no recurrencco The total whit. blood comt ,owod a characteristiccourse for that mount of QXP08W*, harp drop which fluctuatwi at lower 10VCIS for m two Om, followed by l gradual rice. %voml additioad TImrc is no spscial or unique therapy for r8diatioa
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coaplete the 8sdie81 picture, urholycls hose people -8 lpprteiably below l haoard------—. is the doalnaxit hasml. ‘?maitoring la the Pacific uil be d8acribed by othcra. Ia lddition to thoso, two surveys will b. uda for dotostloa lf my radioactivity in tho fish lnd In the One will b, made la Juno relativol kiuetok Atoll ld the second lfter the cad in mom diatmt waters. Stiil l third pro$c for similar molysis. RAlso, t l loumd-t&omonitoriag program lt lbiw8tok and Bikiai At As in the past, there till b. about @ U. & Voathu Bureau stations that uill collect say fall- ‘ 00 -d paporss These ar. then sent to tho At~ta Bmor Cmissionta Health •~ti~et Lobamtory la Jo 00 daw munu at, tkro will ho is Op*ratloa a@m 12 m faot811& M- that will Uk* dlroct lasuruonts of falbut a hor data. ouch l. octlvity la tho lir l~or im tho rgy Comissioa ad tho U. S. Public ffoalth Coopwoted in mmitort l of about 2W nilsm Is program Ma expanded to iacl*8 lbout 30 Public
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mtlstlea Oa man. - 8 organiad l Rajarc p~aa of oollwtif@ and laalyning suplos frcm.all omt the world. (se* map) Samples haw been taken of soil., phnta, anlmah, lnd ice, air in tho upper lad louer regiono, eggs, milk, c eeoe, win., penguina~ L ln col!octod from tho fetal stag. through old age,
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