- TABLS 6.3 - Shot 4, Gamma Infinite Field Levels at Uikini Atoll Converted to r/hr at 1 br as Determined by Various Techniques Station 251.03 251.04 251.05 Code How Love Nan eres by ac wate 250.05 Lagoon - 250.18 Lagoon - Lagoon 250.19 250, 22 Coca 6.1.64 Lagoon Lagoon Lagoon «+98 300 - 0.9 - - - - ~ 156 1.7 - - Analysis 5.3 0.8 0.4 1.0 ~ Collector 25 4.7 - | Total 158 26 5 0.9 - 250.07 TOJ+ 15 Oboe William Yoke zebra aagured by 128 251.06 251.08 251.09 251.10 " | Gummed Analysis . - - 4e7 ~ - 222 0.9 - 1.5 11.9 - - 1.4 1.3 - 5.5 1 Faper 1.9 - | Shot 6 A very complete array of collecting instruments was employed for Shot 6 in the Eniwetok Lagoon and on the atoll islands. Since tne fallout went in a northerly direction from chot point very few of the Stations received significant fallout. The island of ALice, approximately 3 nautical miles from surface z9ro, was contaninated to 45 r/br at 1 br as indicated in Table 6.4. The fallout collected was primarily upwind fallout with the gamma field pattern defined in Fiz. 4.4. The relatively low levels about surface zero fit well with tae overall by Project 2.7. 6.2 contours as determined EXTENDED FALLOUT PALTEAN The contamination of the outlying atollsl5/to the east of Jikint and the measured values of the levels of residual gamma activity follo.ing Snot 1 offered an excellent opcortunity to evaluate the fallout pattern resulting from a super weapon. A covplete analysis of Shot 1 fallout base.i on available field readings and a compr:-nensive analysis of the wind structure with respect to its effect on particle trajecto- ries is presented. 6.2.1 MeasuredField Values of Residual The measured values of residual gamma activity obtained by H. Scoville, Ly were converted to r/hr at 1 nr using tne composite gamma ionization decay curve, Fic. 5.3. One hour post detonation is Simply a convenient reference; as will be noted in luter sections, 30