the cloud contimed tc grow laterally to a diameter larger than 46 neutical miles at the time of their last rerorted measurement, 0 +10 min. The fallout contours fron this analysis indicate hizher levels of activity 60 nautical miles distant than those existing within 10 miles of the detonation point. The pattern is much wider than would be Ovtained by scaling the surfsce shot from Operation JANGLE. For matters of comparison surface JANGLE was scaled to 15 NTI by the cube root scal- in> relationship. This pattern is snown in Fig. 6.7 on the same map scale as the S.ot 1 pattern presented in Fic. 6.6. Tne resulting conparison is interesting, primsrily fron the point of view of the extreme Variation in the confizguration of the two patterns. Justification of fellout contours of uigher 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 zrcodually flattened for hicsher yields. This flattening effect would indicete a resulting wider pattern then one would obtain ty simply Scaling the JANGL:. curt'ace data. Tais configuration is also evidenced in the analysis of tne Shots 5 and 6 fallout patterns.4/ 6.2.9 ifaterial Balance for Snot 1 pattern. Tyo material balances were made on the resulting Snot 1 fallout The beses for these balances were tneoreticul in one case and experinental in the other. (See Aopendix F.) The theoreticsl calcvlations resulted in 57 per cent of tne measured yield of the Snot ] device being accounted for witnin the 109 r/nr at 1 hr contour. Also, the tneoretically calculeted fraction of tne device deposited at Stetion 251.03 was found to be 7.0 x 10-16/sq CMe 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 devosited per square centimeter at tais location. Extrapolating this retio over the fallout pat-ern after takins into consideration the vary- ins levels of activity resvlted in acproximately 30 per cent of the device teins accounted for. This value is questionable because of tae fragrentery data upon which it is baced. However, the two results indicate thet the fallout petter:. as constructed for Snot 1 is witnin reason. Table 6.8 indicates the average gactma activity in r/hr at 1 hr With respect to the areas over which these fields existed, _ _ TABI 6,8=Areas_of Average Gamma Activity _ (sq. miles statute) 2,0L0 | | 2,860 3,860 | 12,900 | 6,030 (r/nr at 1 hr) 3,090 + 2,509 1,590 | | 750 390 90 | wee "aren | Residual Average Gemma activity