0018933 TABLE 3.6 COMPARISON OF AIRBORNE AND DEPOSITED FRACTIONS gr99 Fraction Fraction Deposited Airborne cs37 Total Fraction Fraction Deposited Airborne Total Koa 0,65 0.20 0.85 0.47 0, 64 1.11 Walnut 0.71 0.41 1.11 0. 88 0.78 1, 66 Oak 0.49 0,45 0.94 0.37 ‘0, 61 0.98 4 hours for the land shot, and 6 hours for the reef shot, is quite uniform in composition and exhibits little evidence of fall rate-dependent fractionation, sr 7° is generally more depleted in the reef shot than the land shot, while the reverse is true for cs!37, The 4-hour fallout from the water surface shot is depleted in both nuclides, but the 10-and 13-hour samples show an enrichment. latter samples have nearly the same composition. The two The failure of the 6-and 8-hour flight missions makes the data rather scanty in this case, These effects are brought out clearly by the numbers listed in Table 3.7. | 3.1.3 Combined Cloud and Fallout Data. SAN BRENO EG Another way of estimating the fraction of Mo?? left in the cloud, independent of the fission ratios, is based on a material balance for some nuclide, Y. R-values for nuclide Y