a A tenet Chitin Halo AIT Acrestheres eo atat be senate oi att eenaNe ne rien cee nat, Nafta stmt aol Al aan sazples taken socn after t he cetonation in the cloud cistance from the 4 s (Reference S$), Ayain they cata avaliable and, te the atsence of contrary evidence faren as typical of the fallout on the islands, TABLE L,1 - Shot 1, H+ 9h Be Energy (Mev) - escent of Flux Gurutatire “Lercent 7.04 160 epee ee de ee 1.59 Boce (See Text)| 1.37 0.99 1.27 0,80 0.96 é.70 ov 3.71 6 0,8 | 93 15,11 9,66 19 2h 3 0.50 12,15 21 0.27 4.82 0.22 “6400 0.10 | 20.24 0,068 5.0h I | | 0.76 0,018 L.2 ! , ! 1e 8 2.17 [CSE-ENERGY LISTHRIEUTIONS BOR PLANE SCURCE CLOMETE To compute the propor tion of total air-dose due to a given erergy interval in the deyraded spectrum which resulted fren the cpectrum of the original. sutple, the dose fron the cpectrum cue to the enitter distrituted as an infinite plane source was calculated ty suming the contributions over all path lengths in air, by dividing the original H+ 9h hour spectmm into 13 enerzy regions and carrying out this proco ess (heference 7) for each, a cumulative dose verses energy curve ct e resulted, The cumulative deses are civen in Table s i 3, 4.2, and 4.3, From these curves, a differential historren of perce cose versus enerey interval was determined which represents th cent of dose 18

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