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I . The SECRET material attached i s t o be handled only by persons who are properly. :.: . ' 2. Upon reading, place your signature and the date on this route and cover .sheet. . 3. Mate sure this mak rik is properly guarded and stored a t all timer. : 4. Obtain proper authority before mating a copy of any portion or before removing from the laboratory. 5. Return to the point of origin as soon as possible. 6. This routs and cover sheet must b e attached a t all times.
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mxamr of DDitcd s t a b s aad fomilgn military .tation# wore tulalynd counting techniques designed to mea8um lov Ism1 activities were utilizedr A number of samplaa mefd to contain radioactive iodina a d strontium. An sttempt was ilvlda to correlata urinary iodina activity vith weather-yield and physical fallout data. Certain biological -peck of the problm are diwwsed and collparad
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for atode +rrpoaa dsrting a t Operation %&t. Duo 63 tho d X yioldlr o f
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. suck e low order of cragnituda that it ou aecesouy to embin8 several
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RELATIONSHIP BETWEEN 1 I 3 l AND srgO ACTIVITY (CORRECTED DATA FOR POOLED SPECIMENS BY WEEKS AND STATIONS)
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.quipmoat. Purphrr, th. ma* muat ba thoroughly rinsod in order to irsun wnrtm* baalground oontrola be run throughout the procedure. A wnaiderabla portion of ths wntrols were not completely free of activity. 'his oould lmlmorn rirether the88 aouroes o r teohnical factors ntthin the laboratory Wen rerponaible for the Ob8OlTed OOUt8, the pre-test de teh tion a We m t inoluded. During th6 b a t aeries all Urine srunplea were handled by tho same tochnioal prooerll mid pornomel. so radioaotire aubatenoes ware allomd blow 780 nl., orsatiains determinations were made. Bonod oreatllrirrs %e bats ao tia ty of the ion exohango mats m a measured wit b large large iron l hie ld (qtbisk an top, 6$" oa the sidm and and a bundle of ol r nio f h i a labntoy i r 2*5 to ooun$a-s per minuta. Swapler were paitinned in 0108. oylindrioal geometry dth rwspeot Q the oountorr by the uno of luoib half oylindera. Overall eff l de a oy for iodine-lSl beta part iole s in the mAt8 %em wuntera were Melded from cod0 radiatlon by wms of a waters operating in mtiooinoidence w i & the %e baakgmund for these counters mksn fully ahielded in %a4 oountsrr are a l m i l u ta the type deaoribed by T. T. SugFbsra, R. Wolfgang and 1. F. Libby, Rev. Boi. Inrtrrrments 2 4 7 , 511 (1963).
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is 32 per oent, In order .to establish t h e f
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