erplied to the sanrles collected at the lagoon stations, thereby ver- uitting estimation of infinite field levels for those locations. Using the total collector as the primary source of data, ranma field contours were thus constructed. Where total collector data were missing, activ~ ity levels obtained fron the gurmed cerer collecturs were used. AL1 data presented are baccd on the levels of activity tht would have existed had the fallout cenosited on an infinite land plene. The fields as indicated by the film badzes were erratic. Lecause of poor location of tne film kodges during sampling and unsatisfactory history during and after recovery, these data are not considered in tais analysis. 6.1.1 Shot 1 Table 6.1 shows correlation amone the data obtained by survey measurements on cikini Atoll anc data obteined from the total collect-. ors and gurmed peper collectors located there. iA11 measurements have been converted to r/hr at 1 hr for comparisons. Figure 6.1 is an isodose rate plot of zamma activity over tne atoll, There is inlication of a very steep gradient fron north to South across tne lagoon. “ais sradient is also indicated in the analy- Stetion 5 .. “eacured by Rad Safe Tode Venn . Measured by Proj. 25a Trotel Collector anulysis 251.02 ° Fox 1920 1390 251.04, 251.05 251.0% Love Nan | Choe 270 213 76 415 208 15 450 266 51 251.08 251.09 William | Yoke 21 ~ 17 - 28 - 250.04 Lagoon - - 251.03 251.07 251.10 HOW 510 Uncle 25 zebra Lagoon, Lagoon : Lagoon | 259.18 Laroon 250.24 Lagoon Lagoon 17 38 250.05 250. 50017 250022 690 \ | el - - - - - - - - 75 1630 725 12 23 113 68 9.4 705 20 Gunmed Paper Analysis - 528 - 31 26 - ~ 112 86 60 ~ 50 ~ AS ~ eft eyes uN N. AEN oe 3 TABLE 6,1 - Shot 1, Garma Infinite Meld Levels at Bikini Atoll Converted to r/or -t 1 hr as Deternined ty Various Tecaniques Le of Shot 1 particle trajectery data es illustrated in Fig. 6.5. mate £is