TABLE B.28 HOW ISLAND SURVEYS, STATION F Il RESOLUTION OF IONIZATION RATES BY EVENT The lonization rates for Shots Zuni, Navajo, and Tewa are shown; Shote Flathead and Dakota produced negligible amounta of fallout. Hours Since Jonization Rate, mr/hr TE 2U FL NA TE zu* Nat 11.2 30.3 62.5 100.6 124.2 149.0 197.8 246.6 370.4 388.3 412.4 1,018 1,063 1,066 1,085 1,12 1,304 1,308 1,324 1,349 1,395 — — — — — —_ _ — 9.9 27.8 51.9 658 103 106 125 152 944 946 964 989 1,035 _ _ _ — — _ — = _ — — _ a1 10.5 28.9 56.1 248 250 268 293 339 — — — — = — — — — — _ — — _ — _ 8.5 10.6 28.6 53.2 98.8 1714 561 292 142 101 84.1 87.2 41.9 20.9 20.8 19.2 8.82 8.60 8.60 8.46 8.32 7.55 7.55 7.48 7.48 1.34 — — — — — — — — — — — — 71.4 43.5 7.24 4.18 0.463 0.456 0.410 0.964 0.293 By By Relative Mean Observed Residual Diff. $ Decay $ and o Ervor 292 pet _ ~_ — — — — — = _— — _ — ~ — — _ 220 185 19.6 24.9 12.1 — — — = — — — — _ _ — = — — — _ 199.2 161.7 64.3 34.5 15.3 1,714 £9.18 561 292 142 101 84.1 57.1 41.94 22.5 20.9 20.8#15.6 18.2 8.25 429.3 80.0 52.1 15.1 12.5 228 & 12.5 193 £13.2 87.5 211.7 32.749.88 19.7415.4 pet — — — ~ — — — — — — — — _ — — — -9.45 ~12.6 ~19.2 +38.5 426.4 * Computed from ZU + 1018 hr and later by 4- gamma relative lonization decay of How F-64 ZU, Tray 856. ft Computed from difference, observed ZU, to NA + 66.1 hours; thereafter by 4~s gamma relative ionization decay of YAG 40-A-1, Tray P-3753. $ Computed from difference, observed (ZU + NA). § Computed from best fit of 4-1 gamma relative ionization decay of YFNB 13-E-57, Tray 1975.