the cloud continued te grow laterally to a diameter larger than 66 neutical miles at the time of their last reported measurement, 0 +10 min. The fallout contours from this analysis indicate hisher levels of activity 60 nautical miles distant than those existing within 10 6.2.9 pattern. iaterial Balance for Snot 1 Two material balances were made on the resulting Snot 1 fallout The bases for these balances were tneoreticul in one case and experimental in the other. (See Aopendix F.) The theoretical calculations resulted in 57 per cent of tne measured yield of the Snot 1 device being accounted for witnin the 109 r/hr at 1 hr contour. Also, the tneoretically calculeted fraction of the device deposited at Stetion 251.03 was found to be 7.0 x 10716/sq Cte The fallout in a total collector located at Station 251.03 was analyzed radiochemically and the results showed 3.7 x 10716 of the device was depvosited per square centimeter at tais location. Extrapolating this retio over the fallout pattern after takinz into consideration the varyine levels of activity resulted in acproximately 30 per cent of the device bteine accounted for. This value is questionable because of tae fragmentery data upon which it is based. However, the two results indi- cate thet the fallout patter: as constructed for Shot 1 is within reason. Table 6.8 indicates the average gamma activity in r/hr at 1 hr with respect to the areas over which these fields existed. _._ TABIF_6,3=Areasof AverageGammaActivity_ "es Residual Average Gemma|Activity (sq. miles (r/nr at 1 hr) ctatute) 2,940 2,680 | 3,090 2,509 3,860 1,590 12,900 300 6,030 750 ~ tye wee t * Tais configuration is also evidenced in the analysis of the Shots 5 ané 6 fallout petterns.4/ See a home a Sees serra + The resulting com- Ber scale as the S.ot 1 pattern presented in Fic. 6.6. parison is interesting, primsrily frou the point of view of the extreme variation in the configuration of the two patterns. Justification of fellout contours of higher yield devices having little or no relationship to the scaled JANGLE surface detonetion contours is evidenced in an analysis of cloud dimensions with respect to yield. 11/ The reference indicates tinct a chance of cloud share takes place with increasing yields becoming grodually flettened for higher yields. This flattening effect would indicate a resulting wider pattern then one would obtain by simply Scaling the JANGLS curface data. BT miles of the detonation point. The pattern is much wider than would be ' Obtained by scaling the surface shot from Operation JANGLE. For matters of comrarison surface JANGLE was scaled to 15 MI by the cube root scalins relationship. This pattern is shown in Fig. 6.7 on the same map