+ eee ay Fnne, ase: Figure 9. Eneman Camp, Bikini, looking south-southwest, CASTLE. low activity of alpha" on the shot islands and only small "pools" of activity within 1,000 feet sions. (305 meters) of the craters formed by the explo- These areas were covered with soil during that year; a radiological survey in March 1950 showed less than 0.001 R/hr on Enjebi and Aomon and an average of 0.002 R/hr on Elereron. On Runit the general radioactivity was 0.0015 R/hr, but some of the old shot tower footings showed 0.012 R/hr. After a third survey in April and May of that year, it was concluded that no possibility of overexposure to gamma radiation existed on any island of the atoll and the wearing of film badges was discontinued The GREENHOUSE (1951) (Reference 6). detonations were on Enjebi, Eleleron, and Runit and apparently left these islands and other areas contaminated. The DOG and ITEM tower residues were left in place on Enjebi after GREENHOUSE. Shot GEORGE of GREENHOUSE left a large radioactive crater on Eleleron. MIKE, the first thermonuclear device, detonated on Eluklab in 1952 during Operation IVY, destroyed the island and left an underwater crater. 48