0018933 4A . 35. pow 4,7 pat << - oe the Octen Aanefoet | poling (tdAit RaittEd pe AZ ff nae f little fractionation was foundfor the one device detonated in deep water (Reference 34). At Operation GREENHOUSEit was noted that the exponent of the beta decay curve increased from 0.95 to 1,3 with median particle size for samples taken from the clouds at Dog, Easy and Able shots. This in- dicates that the close-in particles are enriched in fast decaying components with respect to the more distant falleut (Reference 53), 111 For JANGLE surface shots, pronounced depletion of chains 89, 115, and 140 referred to Mo?? was observed in comparing leng-range with local fallout samples. Chains 144 and 95 were net fractionated, Still more ex- tensive nuclide separation was feund for the underground shot with all the above chains showing depletion in the crater area (Reference 53), On Shet 6 at TUMBLER-SNAPPER the gress decay exponent decreased steadily with distance from ground zero up to seventy miles (Reference 53), Radiochemical data from CASTLE Brave showed fractionation of Sr“ 90 and Ba 140 with respect to Mo??, but none for ce! *4# (Reference 53). In the land Shots Zuni and Tewa of Operation REDWING, depletion of cs!37, Sr 90, and Te! 32 was found in the close-in falleut with maximum factors of 100, 13 and 7 (Reference 54). These depletion factors became smaller with increasing distance from the shot peint. 31 Fractionation of the NO ERE SAN BRE 3\