sloud while in the racetrack holding pattern at H+5.25. The intensity was 2.015 R/hr in a later sector search at an altitude of 8,900 feet intensities of 0.050 R/hr were encountered at H+7 about 100 nmi Fen ~~ ab = = ~~ rene - The Wilson 3 aircraft, flying at 5,000 feet (1.5 km), contacted the (2.7 km); (185 km) northeast of Bikini. No aircraft flying between Bikini and Enewetak encountered airborne radiation. Subsequent Wilson flights were cancelled. t Based on a helicopter preliminary damage and radsafe survey at approx~ imately H+2, all units of the task force were issued an advisory directive as follows @ (Reference 16, Tab M): Upon confirmation of reentry hour, all units reenter Eneu anchorages in accordance with previous instructions. The results of the preliminary survey indicated that Bokbata, Nam, Enidrik, and Bikini islands and the Iroij-Aomen chain were contaminated. Lagoon contamination was restricted to a V-shaped pattern with the apex at was obtained over the Eneman anchorage at H+4. A reading of 0.100 R/hr Eneu anchorage was clear of contamination, whereas Bikini anchorage showed traces of contamination at H+4. Reentry and recovery occurred largely on shot day. Table 39 shows the radiation levels on various islands of the atoll. A gamma-rate record was obtained at Iroij. The fallout arrived at about H+20 minutes, and a maximum exposure rate of 23 R/hr was observed at H+40 minutes. The integrated exposure was 51 R until H+15 p. 48). 279 ii i 4 al CTG 7.3 have task force vessels stand off the lagoon entrance at 1000 pending the outcome of the lagoon water survey of the Eneman and Eneu anchorages Eneman and tips covering the Bokbata-Aomen area. 4 : 4 Z| } Lele through Aerokoj and Eneu not appreciably contaminated Reentry hour expected to be 1100 on 7 April @ 4 (Reference 40, i